射频术语 - 衰减器-射频衰减器品牌

 

1. Attenuation

The loss of amplitude of a signal as it passes through a medium

衰减

信号在通过介质时发生的的幅度损失。

2. Attenuation Accuracy

The magnitude of variation in attenuation from the expected value across the operating band.

衰减精度

工作频率范围内，衰减水平离目标值的偏差大小。

3. Attenuation Coefficient

Also called linear attenuation coefficient, the attenuation coefficient is calculated by summing the absorption and scattering coefficients. A large attenuation coefficient means that a signal is quickly weakened as it passes through a medium.

衰减系数

也称为线性衰减系数，其为吸收和散射系数之和。衰减系数越大表示信号在通过介质时其强度的减弱速度越快。

4. Attenuation Constants

The reduction of amplitude in voltage and current. The reduction is an exponential function which changed with line length.

衰减常数

表示电压和电流幅度的降低程度。该降低量为线路长度的指数函数。

5. Attenuation-Limited Operation

When a fiber optic systems performance becomes limited due to the incoming signal amplitude as opposed to distortion. (Bandwidth-limited operation; Distortion-limited operation.)

衰减（受限运行）

光纤系统性能受限于输入信号的幅度而非其失真（受带宽限制的运行；受带宽限制的运行）。

6. Attenuator

Used in the extension of dynamic range of devices like power meters and amplifiers, this device transmits an input signal with minimal distortion by absorbing part of the signal itself. The attenuator is also used as a way to equalize signal levels in transmission lines.

衰减器

用于增大功率计和放大器等器件的动态范围。衰减器通过自身吸收输入信号的一部分而可以较小失真实现输入信号的传输。衰减器还作为传输线内信号电平的一种均衡手段。

7. Attenuator, Continuously Variable

An attenuator whose attenuation value can be changed along a series of continuous values.

衰减器，连续变量

一种衰减值可以一系列连续值变化的衰减器。

8. Attenuator, Digital

A type of attenuator that can be controlled by digital signals. The number of attenuation states it has depends on the number of states the digital signals have.

数字衰减器

一种可通过数字信号控制的衰减器。数字衰减器的衰减状态数取决于数字信号的状态数。

9. Attenuator, Fixed

Fixed attenuators are available in many forms such as chip, coaxial, and waveguide forms. The frequency of operation and the power handling are the main points to consider when choosing a fixed attenuator.

固定式衰减器

固定式衰减器可分为芯片，同轴和波导等各种形式。选择固定式衰减器时需要考虑的主要因素为其工作频率和功率处理能力。

10. Attenuator, Flatness of

The total variation in the attenuation of an attenuator over a specific range of frequency. Flatness typically worsens at higher frequencies.

衰减器，平坦度

特定频率范围内衰减器的总衰减变化程度。通常而言，频率越高，平坦度越差。

11. Attenuator, In-out Isolation of Bi-phase

The insertion loss, when no current flows through the control port, from input to output

衰减器，双相的In-Out隔离

无电流通过控制端口时，输入端至输出端的插入损耗。

12. Attenuator, Insertion Loss of Bi-phase

The loss in power from input to output at a particular input current.

双相衰减器插入损耗

特定输入电流下输入端至输出端的功率损耗。

13. Attenuator, L-Pad

Used to match two impedances. This particular type of solution results in signal loss

衰减器，L垫

用于对两个阻抗进行匹配的特殊类型衰减器，其会导致信号损失。

14. Attenuator, Maximum RF Power of

The maximum power that can be supplied to the attenuator without overheating.

衰减器最大射频功率

在不导致过热的前提下衰减器的最大供电功率。

15. Attenuator, Reflection

Contains a four-port quadrature coupler, consisting of two matched terminations on the through and coupled ports. These terminations must show an impedance that is at least partially real in order for the device to work.

反射式衰减器

反射式衰减器含有四端口正交耦合器，该耦合器由直通端口和耦合端口处的两个匹配端接结构组成。这些端接结构的阻抗必须至少部分为实部阻抗，才能使该衰减器正常工作。

16. Attenuator, Return Loss of

Measure from one port while the other port is connected to a 50 or 75 ohm termination.

衰减器回波损耗

一个端口连接50或75欧姆终端时，在另一端口测得的回波损耗。

17. Attenuator, Return Loss of Bi-phase

The magnitude of power returned involving the input in relation to the incident power at the input for a given control current. A low control current level will result in small return loss while a high control current will result in very high return loss.

双相衰减器回波损耗

在给定控制电流下，输入端回波功率相对于输入端输入功率的大小。小的控制电流对应较小的回波损耗，大的控制电流将导致极大的回波损耗。

18. Attenuator, Step

Divisions in which the attenuator can be set to reduce the signal by specific amounts.

衰减器步长

衰减器信号衰减量的特定划分区间。

19. Attenuator, Switchable

Switchable attenuators consist of two general categories: switched network attenuators and switched element attenuators. They offer electrically or mechanically controllable attenuation states.

可切换衰减器

可切换衰减器总体分为两类：网络切换式衰减器和元件切换式衰减器。此类衰减器可提供可以电气方式或机械方式控制的衰减状态。

20. Attenuator, Switched-Element

Similar to a pi pad network using resistive elements capable of realizing multiple values. It uses field effect transistors for switching.

元件切换式衰减器

与π型衰减器网络类似，元件切换式衰减器使用可实现多种衰减值的电阻性元件。此外，元件切换式衰减器使用场效应晶体管实现切换功能。

21. Attenuator, Switched-Network

Versatile attenuators that can that can support multiple values of attenuation.

网络切换式衰减器

一种支持多种衰减值的多功能衰减器。

22. Attenuator, Temperature Compensating Fixed

Used with amplifiers so as to counteract the gain vs. temperature effect amplifiers. In these types of attenuators, the loss of the attenuator decreases as the temperature increases.

固定式温度补偿衰减器

与放大器一起使用，以抵消放大器温度对增益的影响。此类型衰减器的损耗随温度升高而降低。

23. Attenuator, Variable

Attenuators which can change the amount of attenuation via an applied voltage.

可变衰减器

可通过施加电压改变衰减量的衰减器。

24. Attenuator, VSWR of

Voltage standing wave ratio is a representation of signal reflection in RF devices. In attenuators, VSWR is a metric describing the impedance mismatch between the input and the attenuator.

衰减器电压驻波比

电压驻波比表示射频器件内的信号反射程度。在衰减器中，电压驻波比用于描述输入和衰减器之间的阻抗失配程度。

25. Primary Attenuation Step

The port of the step attenuator that is activated, or in the "high" state.

主衰减步骤

步进式衰减器的激活端口（或者说处于“高“态的端口）。

26. Relative Attenuation

Attenuation relative to the minimum.

相对衰减

相对于最小值的衰减。

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