FCC G6B - 电路元件 | Zq.Lucifer.Wall

#G6B01🔗

What determines the performance of a ferrite core at different frequencies?

是什么决定了铁氧体磁芯在不同频率下的性能？

Its conductivity

其电导率

Its thickness

其厚度

The composition , or “ mix ,” of materials used

所用材料的成分或“混合物”

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The ratio of outer diameter to inner diameter

外径与内径之比

#G6B02🔗

What is meant by the term MMIC?

MMIC 一词是什么意思？

Multi-Mode Integrated Circuit

多模式集成电路

Monolithic Microwave Integrated Circuit

单片微波集成电路

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Metal Monolayer Integrated Circuit

金属单层集成电路

Mode Modulated Integrated Circuit

模式调制集成电路

#G6B03🔗

Which of the following is an advantage of CMOS integrated circuits compared to TTL integrated circuits?

与 TTL 集成电路相比，以下哪项是 CMOS 集成电路的优点？

Low power consumption

低功耗

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High power handling capability

高功率处理能力

Better suited for RF amplification

更适合射频放大

Better suited for power supply regulation

更适合电源调节

#G6B04🔗

What is a typical upper frequency limit for low SWR operation of 50-ohm BNC connectors?

50 欧姆 BNC 连接器低 SWR 操作的典型频率上限是多少？

50 MHz

50兆赫

500 MHz

500兆赫

4 GHz

4GHz

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40 GHz

40GHz

#G6B05🔗

What is an advantage of using a ferrite core toroidal inductor?

使用铁氧体磁芯环形电感器有什么优点？

Large values of inductance may be obtained

可以获得大的电感值

The magnetic properties of the core may be optimized for a specific range of frequencies

磁芯的磁性可以针对特定的频率范围进行优化

Most of the magnetic field is contained in the core

大部分磁场包含在磁芯中

All these choices are correct

所有这些选项都是正确的

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#G6B06🔗

What kind of device is an integrated circuit operational amplifier?

集成电路运算放大器是一种什么样的器件？

Digital

数码

MMIC

微型集成电路

Programmable Logic

可编程逻辑

Analog

模拟

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#G6B07🔗

Which of the following describes a type N connector?

以下哪项描述了 N 型连接器？

A moisture - resistant RF connector useful to 10 GHz

一种适用于 10 GHz 的防潮射频连接器

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A small bayonet connector used for data circuits

用于数据电路的小型卡口连接器

A low noise figure VHF connector

低噪声系数 VHF 连接器

A nickel plated version of the PL-259

PL-259 的镀镍版本

#G6B08🔗

How is an LED biased when emitting light?

LED 发光时如何偏置？

In the tunnel-effect region

在隧道效应区

At the Zener voltage

在齐纳电压下

Reverse biased

反向偏置

Forward biased

前向偏压

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#G6B10🔗

How does a ferrite bead or core reduce common-mode RF current on the shield of a coaxial cable?

铁氧体磁珠或磁芯如何减少同轴电缆屏蔽层上的共模射频电流？

By creating an impedance in the current’s path

通过在电流路径中创建阻抗

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It converts common-mode current to differential mode current

它将共模电流转换为差模电流

By creating an out-of-phase current to cancel the common-mode current

通过产生异相电流来消除共模电流

Ferrites expel magnetic fields

铁氧体消除磁场

#G6B11🔗

What is an SMA connector?

什么是 SMA 连接器？

A type-S to type-M adaptor

S 型至 M 型适配器

A small threaded connector suitable for signals up to several GHz

适用于高达数 GHz 信号的小型螺纹连接器

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A connector designed for serial multiple access signals

专为串行多路访问信号设计的连接器

A type of push-on connector intended for high-voltage applications

一种用于高压应用的推入式连接器

#G6B12🔗

Which of these connector types is commonly used for low frequency or dc signal connections to a transceiver?

以下哪种连接器类型通常用于与收发器的低频或直流信号连接？

PL-259

BNC

RCA Phono

RCA 唱机

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Type N

N型

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FCC G6B - 电路元件

小节 G6B：电路元件