How to Design an RF Power Amplifier: The Basics. This video provides a foundation for understanding how power amplifier circuits work. If you are new to High Frequency Power Amplifier Circuit Design, this is the place to start. This video provides a foundation for understanding how power amplifier circuits work. As an RF signal propagates away from a transmitter the power density reduces conserving the power in the EM wave. In the absence of …Precision RF power detectors for a wide range of applications including RF/IF power measurement, transmit/receive power monitoring, RF leakage monitors, ...While the Exilis skin tightening and RF skin tightening treatment can quickly tone loose, sagging skin, natural remedies are also helpful for keeping complexions youthful. Read on ... The Model 4421A is a Multifunction Power Meter to be used in combination with Bird’s Precision Power Sensors to display RF power readings with up to 0.5% accuracy. This intuitive display unit clearly identifies the Forward and Reflected power measurements within the RF path. In addition, return loss readings can also shown to provide ... We engineer and manufacture the most advanced RF & Microwave power solutions for high performance systems around the world. Integra understands what’s at stake at the end of every signal we power. Partner with us to rearchitect your system to achieve best-in-class system performance while reducing SWaPC² - system Size, Weight, Power, Cost ...Nov 13, 2018 ... I am making a footprint for a push pull RF power mosfet http://www.polyfet.com/dsheet/lk2201.pdf The transistor source flange sits in a ...Aug 6, 2011 · Extending the Range of an RF System. Increase the Output power. Add an external Power Amplifier (PA) Increase the sensitivity. Add an external Low Noise Amplifier (LNA) Increase both output power and sensitivity. Add PA and LNA. Use high gain antennas. Regulatory requirements need to be followed.Jan 15, 2024 · In RF sputtering, DC power source is replaced with an AC one in the vacuum chamber, in which the polarity of the power supply changes alternatively. Thus, the electrons reach the target when it possesses the positive pole in the half-cycle and neutralize the positive ions collected on the target surface; while in the …Oct 18, 2021 · Abstract: In this letter, a novel RF power detector (PD) that operates at X-band range is presented using standard 0.18- $\mu \text{m}$ RF Complementary Metal Oxide Semiconductor (CMOS) technology. The proposed RF PD is mainly composed of a coplanar waveguide (CPW), two matched resistive loads and a Wheatstone full-bridge …Here is a thorough treatment of distortion in RF power amplifiers. This unique resource offers expert guidance in designing easily linearizable systems that have low memory effects. It offers you a detailed understanding of how the matching impedances of a power amplifier and other RF circuits can be tuned to minimize … Books. RF Power Amplifiers. Marian K. Kazimierczuk. John Wiley & Sons, Oct 14, 2014 - Technology & Engineering - 688 pages. This second edition of the highly acclaimed RF Power Amplifiers has been thoroughly revised and expanded to reflect the latest challenges associated with power transmitters used in communications systems. Flexibility. E&I amplifiers accurately reproduce all waveforms within their power and frequency ranges: AM. FM, SSB, pulsed and other complex modulation schemes ...Jan 14, 2015 ... To download the project files referred to in this video visit: http://www.keysight.com/find/eesof-how-to-pa-basics To apply for free trial ... A radio-frequency power amplifier ( RF power amplifier) is a type of electronic amplifier that converts a low-power radio-frequency (RF) signal into a higher-power signal. [1] Typically, RF power amplifiers are used in the final stage of a radio transmitter, their output driving the antenna. Design goals often include gain, power output ... XP Power is committed to being a leading provider of power solutions, including AC-DC power supplies and DC-DC converters, high voltage power supplies and RF power supplies. XP offers total quality, from in-house design in Asia, Europe and North America through to manufacturing facilities around the world.General Purpose Op Amps. High Output Current Op Amps ≥ 100mA. High Speed Op Amps (Bandwidth ≥ 50MHz) High Voltage Op Amps ≥12V. JFET Input Op Amps. Low Input Bias Current Op Amps (≤100 pA) Low Noise Op Amps (≤ 10nV/√Hz) Low Power Op Amps (≤ 1mA/amp) Precision Op Amps (Vos ≤1mV & TCVos ≤2uV/C)In this article, a uniform neural network (NN) digital predistortion (DPD) model of radio frequency (RF) power amplifiers (PAs) is proposed for dynamic applications, which is suitable for RF PAs under various operating conditions without updating the coefficients. With the development of communication systems, it is difficult for the DPD to track the …Sep 15, 2023 · RF Power Amplifiers’ Role in Wireless Communication. An RF power amplifier is an electronic device designed to increase the power level of radio frequency signals. It takes a weak input signal and boosts it to a higher power level suitable for transmission over long distances or to drive high-power loads, most often antenna. In a radio station, power is generated by a transmitter, usually housed comfortably in a shack, and the RF power is led to the (usually) remote antenna by a cable, or …Jun 16, 2022 · Abstract: In this letter, two basis function multiplexing-based behavioral modeling methods for digital predistortion (DPD) of RF power amplifiers (PAs) are proposed to reduce the running complexity of DPD. The proposed full basis-propagating selection (FBPS) model and reduced-complexity FBPS (RC-FBPS) model give two reasonable …Sep 3, 2020 · Output RF Power. Peak/Average output power capability is expressed in W or dBm. Frequency band. LDMOS (band-specific) 1 MHz to 3.8 GHz. GaN (wideband) 1 MHz to 3.0 GHz. GaAs and SiGe 1 MHz to 6 GHz. Supply Voltage(s) 1.5 V – 13.6 V for Handheld and Mobile applications. 26 V – 52 V for High Power LDMOS and GaN.At high power level, RF stress induces a prominent trapping-related increase in the source resistance most likely as a result of the creation of new traps. This is in contrast with drain degradation that often occurs under similar DC conditions. Our findings cast a doubt over the ability of DC life test in evaluating reliability under RF power ... A radio-frequency power amplifier ( RF power amplifier) is a type of electronic amplifier that converts a low-power radio-frequency (RF) signal into a higher-power signal. [1] Typically, RF power amplifiers are used in the final stage of a radio transmitter, their output driving the antenna. Design goals often include gain, power output ... One essential tool is the RF power meter. This device measures the power level of an RF signal, providing a precise measurement of its amplitude. RF power meters come in various forms, including handheld devices and benchtop units. They are equipped with different features such as frequency range, power range, and accuracy. Aug 1, 2021 · For MR system, the most valuable RF power is the effective part transmitted into the imaging object to setup the required B 1 + field, which is critical to the image quality. For an ideal system without any RF power loss in transmit chain and a typical patient with weight at 80 kg, under the whole body SAR limitation at …Regulated Buck-Boost Charge Pumps. Regulated Inverting Charge Pumps. Regulated Step-Down Charge Pumps. Regulated Step-Up Charge Pumps. Analog Devices’ RF Power Detectors are a broad portfolio of Logarithmic Amplifiers, TruPwr™ RMS Detectors, Peak/Envelope Detectors and Successive Detection Log Video Amplifiers (SDLVAs). …PMX40RF Power Meter. The PMX40 provides design engineers and technicians the utility of traditional benchtop instrument, the flexibility and performance of modern USB RF power sensors, and the simplicity of a multi-touch display built with Boonton award-winning technology.Learn More Datasheet. High-Performance and Versatile USB Power Sensors.Dec 15, 2011 · RF power generation R.G. Carter Engineering Department, Lancaster University, Lancaster LA1 4YR, U.K. and The Cockcroft Institute of Accelerator Science and Technology, Daresbury, UK Abstract This paper reviews the main types of r.f. power amplifiers which are, or may be, used for particle accelerators. It covers solid-state …XP Power is committed to being a leading provider of power solutions, including AC-DC power supplies and DC-DC converters, high voltage power supplies and RF power supplies. XP offers total quality, from in-house design in Asia, Europe and North America through to manufacturing facilities around the world. MPLAB® ICD 5 In-Circuit Debugger. MPLAB® ICE 4 In-Circuit Emulator. MPLAB® PICkit™ 5 In-Circuit Debugger. MPLAB® Snap In-Circuit Debugger. Power Debugger. Our RF power amplifiers for aerospace, defense, test & measurement, and wireless infrastructure offer wide frequency range with high-linearity & multi-functionality. 8 RF IF Linear and Non-linear PAs “Non-linear PA” generally refers to a PA designed to operate with constant P IN, output power varies by changing gain P OUT …Mar 27, 2020 · Solid-state RF power has been used for decades in 1–500 MHz ISM applications. However, power generation in the important 915 MHz, 2.45 GHz, and 5.8 GHz ISM bands has until recently been dominated by magnetrons, so those frequencies are the focus of this chapter. Download chapter PDF. MPLAB® ICD 5 In-Circuit Debugger. MPLAB® ICE 4 In-Circuit Emulator. MPLAB® PICkit™ 5 In-Circuit Debugger. MPLAB® Snap In-Circuit Debugger. Power Debugger. Our RF power amplifiers for aerospace, defense, test & measurement, and wireless infrastructure offer wide frequency range with high-linearity & multi-functionality. Open as PDF In today’s wireless world, RF signals are transmitted and received to effectively send data and facilitate wireless communications. Among all the parameters to consider in RF design, power measurements remain one of the most critical metrics for designers and operators. With today’s complex modulation schemes, pulsed communication modes, and increased popularity of wireless ... Dec 18, 2023 · • RF Power sources • Many gaps – Why? – Example: side coupled linac, LIBO • Travelling wave structures – Brillouin diagram, iris loaded structure, waveguide coupling • Superconducting Accelerating Structures 20-Sep-2011 CAS Chios 2011 — RF Cavity Design 2. DC VERSUS RF ...模组RF工具：能量 (RFTools Power)的介绍页，我的世界MOD百科，提供Minecraft(我的世界)MOD(模组)物品资料介绍教程攻略和MOD下载。MC百科 (mcmod.cn) 的目标是为玩家提供更好的环境进行MOD学习和研究，并接纳、培养更多硬核玩家。Jan 18, 2021 · RF Power（对应CCP Generator）：增加RFPower 直接增加离子的加速度，离子将具有更多的动能，这对物理刻蚀和化学刻蚀都有影响，但主要是增加物理刻蚀过程。Pressure（对应Pumping）：增大腔体 …This paper proposes an analytical method for effectively evaluating the performances of zero-bias diode-based RF power harvesters. The method allows the accurate calculation of both the diode power conversion efficiency (PCE) and matching efficiency, while showing the wide adaptability to frequency and input power. To …Nov 28, 2014 · About this book. This second edition of the highly acclaimed RF Power Amplifiers has been thoroughly revised and expanded to reflect the latest challenges associated with power transmitters used in communications systems. With more rigorous treatment of many concepts, the new edition includes a unique combination of class-tested analysis and ... Apr 16, 2018 · A: There are several reasons. First, power is what really counts in a system. The challenge in an RF design is to endure you have enough of it to “activate” the next stage, whether it is a transmitter driving an antenna, or a low noise amplifier (LNA) stage driving the front end of a receiver. There has to be enough power to exceed the ... Jan 30, 2024 · An interesting series of experiments centers on harvesting RF power generated by a Tokyo, Japan TV broadcast station at a distance of 6.5 km. The block diagram for the project is as follows. Figure 1: Representation of a system-level description of an RF energy harvesting device. (Source: “A Battery-Less, Energy Harvesting Device …At high power level, RF stress induces a prominent trapping-related increase in the source resistance most likely as a result of the creation of new traps. This is in contrast with drain degradation that often occurs under similar DC conditions. Our findings cast a doubt over the ability of DC life test in evaluating reliability under RF power ...Understanding RF power measurement and its applications is fundamental for anyone studying RF and microwave engineering courses. This application note covers a wide range of RF power measurement-related topics with the objectives of helping students understand the basics of RF power and the importance of RF power measurement, providing some …May 29, 2018 · PA Design Challenges. Delivering RF power into 50 ohms requires a voltage swing 50x the load current (Amps) (from V = IR) Typical PA devices handle 5V to 28V supply, (GaN may be 55V) The load current for a typical PA device may be several Amps, with peaks of 10s of Amps “Matching” is required to transform the …Flexibility. E&I amplifiers accurately reproduce all waveforms within their power and frequency ranges: AM. FM, SSB, pulsed and other complex modulation schemes ...Sep 15, 2023 · RF Power Amplifiers’ Role in Wireless Communication. An RF power amplifier is an electronic device designed to increase the power level of radio frequency signals. It takes a weak input signal and boosts it to a higher power level suitable for transmission over long distances or to drive high-power loads, most often antenna. Explore Inductorless (Charge Pump) DC/DC Converters. Flash Memory Programming. GaAsFET Bias Generators. High Voltage Charge Pumps. RF Power meters are used to measure the power within a frequency spectrum. Analog Devices offers a portfolio of advanced RF detectors, RF signal conditioning, high-speed ADCs, and integrated solutions. An envelope tracking supply converter was presented for the RF power amplifiers of sub-6 GHz 5G NR mobile devices. The hybrid supply converter consisted of a linear, fast switching, and slow switching regulators connected in parallel. The two-phase hysteretic control was proposed for use in the fast switching regulator to track the …A rheumatoid factor (RF) level higher than 60 units per milliliter of blood can signify the presence of rheumatoid arthritis or Sjögren’s syndrome, according to MedlinePlus. Rheuma...RF power: How RF energy harvesting works. 30 Jan 2024. It all seems so simple, and at first glance, it makes a lot of sense. We live in a world run wild with electronic signals—radio, … The PA in general can be seen as an RF component amplifying the RF power by consuming power from the DC power supply. Figure 1.1 shows the symbolic representation of PA, describing the DC power conversion to RF power at the output. Due to this conversion, a DC to RF conversion efficiency is defined as one of the design parameters for the PA. Aug 24, 2020 · RF power are applied to the substrate as bias power. Here, argon gas pressure is 30 mTorr. In this study, the fluid module is used to calculate the densities and fluxes of all the charged species, electron tem-perature, electrostatic fields, and electromagnetic ...The AlN/GaN/AlN heterostructure is attractive for microwave and millimeter-wave power devices due to its thin top barrier, tight carrier confinement, and improved breakdown voltage. This work explores the large-signal RF performance of high-electron-mobility transistors on this heterostructure. Results are highlighted by …High Voltage Charge Pumps. Regulated Buck-Boost Charge Pumps. Regulated Inverting Charge Pumps. Regulated Step-Down Charge Pumps. While signal …Oct 19, 2018 · 50-V LDMOS. This increase in power density from 1.4 W/mm for 30-V LDMOS to 2 W/mm is predominantly caused by the increase of supply voltage from 28 to 50 V, while the current capability of these technologies is similar. The maximum drain eficiency is also very similar, yielding a value of 67 % at 1 GHz.Features · Wide operation frequency range from 100MHz to 1 GHz. · High power gain up to 35dB. · High output power up to 34.5dBm (2.8W). · High power add...Mar 13, 2024 · When designing with Freescale RF power plastic devices, one of the first decisions is whether to use the surface--mount capabilities of the plastic package options and mount the RF device on the top of the PCB over a grounded via pattern, or to choose a through-the-PCB option with the RF power device mounted directly …Mar 8, 2024 ... In the realm of wireless communication, radio frequency (RF) power amplifiers play a crucial role in ensuring efficient and reliable signal ...RF Power Generators · At the heart of advanced power delivery · NEW! · Synertia® RF Generator. In RF circuitry, the amplifier’s output stage (and the transmission line that connects the amplifier to the antenna) will often have impedance of 50 Ω, and thus the antenna impedance must also be 50 Ω to ensure maximum power transfer. RF Power Dividers/Splitters are in stock at DigiKey. Order Now! RF and Wireless ship same day.RF Power Generators · At the heart of advanced power delivery · NEW! · Synertia® RF Generator.In an RF power amplifier, the power added efficiency (PAE) is defined as the ratio of amplified signal power (i.e., the difference between output signal power and input signal power of the amplifier) to the consumed DC input power of the amplifier. PAE is an efficiency parameter by which a device converts DC or RF input power to a higher RF output.8 RF IF Linear and Non-linear PAs “Non-linear PA” generally refers to a PA designed to operate with constant P IN, output power varies by changing gain P OUT …Aug 1, 2021 · For MR system, the most valuable RF power is the effective part transmitted into the imaging object to setup the required B 1 + field, which is critical to the image quality. For an ideal system without any RF power loss in transmit chain and a typical patient with weight at 80 kg, under the whole body SAR limitation at …Designing a stable high-frequency RF power amplifier requires a simulation solution that integrates multiple proven stability analysis techniques. Keysight EDA Advanced Design System (ADS) provides Winslow probes (WSProbes), a non-perturbative dual stimulus probing algorithm, enabling 14 distinctive stability analysis techniques for your design.Dec 22, 2010 · Measuring RF power using peak detection Take the simplest case of a CW waveform measurement. Even if the amplitude can vary, as long as the signal is within a prescribed time interval during which the amplitude is relatively constant, accurate measurement can be made with a peak level detector, such as the LTC5532 from Linear Technology. This ... Dec 22, 2021 · High Ruggedness N--Channel Enhancement- -Mode Lateral MOSFET. RF power transistor designed for both narrowband and broadband ISM, broadcast and aerospace applications operating at frequencies from 1.8 to 2000 MHz. This device is fabricated using NXP’s enhanced ruggedness platform and is suitable for use in …You can use a power of attorney to convey a range of abilities and rights to another person or organization. The rights granted by a power of attorney are limited by both the terms...Feb 1, 2023 · RF POWER AMPLIFIER BEHAVIORAL MODELING If you are an engineer or RF designer working with wireless transmitter power ampli er models, this comprehensive and up-to-date exposition of nonlinear power ampli er behavioral modeling theory and techniques is an absolute must-have.May 18, 2018 · ImmersionRC RF PowerMeter V2 Features. Affordable and portable compared to equipment in the field. Helps you find out about VTX output power. Measures frequency from 35MHz all the way up to 6GHz. You can use it to locate a crashed RC model with a powered VTX in tall grass. Books. RF Power Amplifiers. Marian K. Kazimierczuk. John Wiley & Sons, Oct 14, 2014 - Technology & Engineering - 688 pages. This second edition of the highly acclaimed RF Power Amplifiers has been thoroughly revised and expanded to reflect the latest challenges associated with power transmitters used in communications systems. 1.6.3 Decibels. RF signal levels are usually expressed in terms of the power of a signal. While power can be expressed in absolute terms such as … Understanding RF power measurement and its applications is fundamental for anyone studying RF and microwave engineering courses. This application note covers a wide range of RF power measurement-related topics with the objectives of helping students understand the basics of RF power and the importance of RF power measurement, providing some common course curriculum RF power measurement ... The most common absolute dB unit is dBm; it conveys the dB power of a signal with respect to 1 mW. The dBc unit expresses power with respect to the power of a related signal. The dBi unit expresses the gain of an antenna relative to the response of an idealized point-source antenna. 8 RF IF Linear and Non-linear PAs “Non-linear PA” generally refers to a PA designed to operate with constant P IN, output power varies by changing gain P OUT …For decades, the RF Business has enabled radio frequency technology advancements that are the backbone of wireless communications networks, defense radar systems, aviation electronics, air traffic control systems, satellite communications, space exploration and more. Customers today are demanding …RF power meters and spectrum analyzers require calibration to ensure accurate measurements. Calibration is the process of verifying and adjusting the accuracy of the measurement device using a reference source of known power. Temperature. The temperature of the measurement environment can affect the accuracy of RF power …Berkeley Nucleonics is excited to release our newest line of RF average power sensors: the Model 12100 Series. These versatile and easy-to-use sensors boast an impressive 9 kHz to 50 GHz bandwidth. With a dynamic range of -60 dBm to 26 dBm, these sensors can measure even the most subtle RF signals with industry-leading … If the reflected power is zero, the generator can deliver its maximum rated power into the load. 3. The difference between the forward and reflected powers is the real power delivered to the load, but: 4. the generator does not actually generate a power equal to the forward power, and 5. the reflected power figure is not absorbed by the generator. Jan 17, 2024 · Still, a push-pull Class B RF power amplifier operates much like a Class B audio-frequency power amplifier. The Transformer-Coupled Push-Pull Configuration. There are several different methods for implementing a push-pull amplifier. Figure 2 illustrates a configuration commonly known as the transformer-coupled push-pull power amplifier.
Nov 23, 2016 · RF Device Data Freescale Semiconductor RF Power Field Effect Transistors N--Channel Enhancement--Mode Lateral MOSFETs Designed for digital and analog cellular PCN and PCS base station applications with frequencies from 1000 to 2500 MHz. Characterized for operation Class A and Class AB at 26 volts …. Mirar john wick 4
Here is a thorough treatment of distortion in RF power amplifiers. This unique resource offers expert guidance in designing easily linearizable systems that have low memory effects. It offers you a detailed understanding of how the matching impedances of a power amplifier and other RF circuits can be tuned to minimize …6 days ago · MPLAB® ICE 4 In-Circuit Emulator. MPLAB® PICkit™ 5 In-Circuit Debugger. MPLAB® Snap In-Circuit Debugger. Power Debugger. Third-Party Development Tools. View All. Our RF power MOSFETs operate from 2–1150 MHz with supply voltages of 50–1300V and output power of 50W-3kW. They are excellent options for high-frequency power …The global RF power amplifier market is poised to register a 14.2% CAGR, capturing a revenue share of US$ 5,230 Million in 2022, to reach US$ 19,670 Million by 2032. The high demand for an amplified low-power radio-frequency signal (into a high-power signal) led to the introduction of RF power amplifiers. Furthermore, increasing demand for RF ...Jan 22, 2024 · RF power sensors play a pivotal role in the field of radio frequency engineering, offering crucial insights through power measurements typically provided in dBm. This metric stands as the cornerstone of RF analysis, making power sensors indispensable for RF engineers. Whether in a lab or factory setting, these devices become ubiquitous tools ... RF Power Amplifier Market is expected to grow at a CAGR of 6.5% during the forecast period and market is expected to reach US$ 1.34 Bn. by 2029. RF Power Amplifier Market Dynamics RF power amplifier is a kind of electronic device, which used for transmitting amplified radio frequency signals through an antenna within a defined frequency range.Jan 28, 2024 · RF Limiter is specially designed to limit the signals in the radio frequency or RF spectrum range. As mentioned limiter operates in saturated mode, its output spectrum is composed of harmonics of the applied input signal. The harmonic contents will depend on the applied power level as well as bias current. …Features · Wide operation frequency range from 100MHz to 1 GHz. · High power gain up to 35dB. · High output power up to 34.5dBm (2.8W). · High power add... Extending the Range of an RF System. Increase the Output power. Add an external Power Amplifier (PA) Increase the sensitivity. Add an external Low Noise Amplifier (LNA) Increase both output power and sensitivity. Add PA and LNA. Use high gain antennas. Regulatory requirements need to be followed. Jun 16, 2022 · Abstract: In this letter, two basis function multiplexing-based behavioral modeling methods for digital predistortion (DPD) of RF power amplifiers (PAs) are proposed to reduce the running complexity of DPD. The proposed full basis-propagating selection (FBPS) model and reduced-complexity FBPS (RC-FBPS) model give two reasonable … Understanding RF Power and dB Conversion. The RF signal must be strong enough for it to be fully processed. The RF signal strength can be measured in Watts (W) using the amplitude or the signal waveform’s top peak to the bottom peak height. Decibel (dB) conversion is used for exponential values. Watts (W) and milliWatts (mW) are absolute ... Aug 6, 2011 · Extending the Range of an RF System. Increase the Output power. Add an external Power Amplifier (PA) Increase the sensitivity. Add an external Low Noise Amplifier (LNA) Increase both output power and sensitivity. Add PA and LNA. Use high gain antennas. Regulatory requirements need to be followed.Apr 1, 2023 · RF power performance of both devices was tested via on-wafer 3.5-GHz Focus load-pull measurements under class AB operation with load and source impedances tuned to maximize the output power (P out). As shown in Fig. 9 (b), a saturated power density (P sat )of 3.7 W/mm in DG devices was measured with a drain efficiency of 50.0 % at V DS …3 days ago · In RF circuitry, the amplifier’s output stage (and the transmission line that connects the amplifier to the antenna) will often have impedance of 50 Ω, and thus the antenna impedance must also be 50 Ω to ensure maximum power transfer.Mar 27, 2020 · Solid-state RF power has been used for decades in 1–500 MHz ISM applications. However, power generation in the important 915 MHz, 2.45 GHz, and 5.8 GHz ISM bands has until recently been dominated by magnetrons, so those frequencies are the focus of this chapter. Download chapter PDF.Feb 16, 2023 · Powercast’s Booth #52311 Demonstrates the Home of the Future with RF Wireless Power Everywhere: Representing the living room and bathroom of the future, Powercast will demo a distributed network of Ubiquity RF transmitters that keep RF-enabled devices working throughout the home. Devices include electric …As suggested in the comments, you can write a proxy function, that adds the -rf parameter to Remove-Item.If you then set the alias rm to point to your ….