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现有三个新部件,它们可以用来扩大扫频信号发生器的各种测量的范围。TE2361扫频信号发生器的一个新插件不需要增加任何的检波器就可以把上限频率提高到1000MHz。TM9694型超高频扫频单元保持了其原先的插入单元所调到的响应平坦度和失真度,同时220MHz到1000MHz的频率复盖是用直接的方法产生的。 TM9954型对数放大器可有效地与扫频信号发生器或者普通的信号发生器配合使用,响应的对数显示可达70dB,而频率范围是由所用的检波器来确定的。用TM9953型ρ电桥可以作精密的电压驻波比测量,它工作的频率范围从1MHz到1000MHz,并且它有一个内装的放大器用来提高分辨力。对这三个新部件的有关应用也作了说明。
There are three new components that can be used to expand the range of measurements for a swept signal generator. A new plug-in for the TE2361 Sweep Signal Generator can raise the upper limit to 1000MHz without adding any detectors. The TM9694 UHF sweep unit maintains the response flatness and distortion tuned to its original insertion unit while the 220MHz to 1000MHz frequency coverage is generated using the direct method. The TM9954 logarithmic amplifier can be used effectively with a sweep signal generator or a common signal generator with a logarithmic response of up to 70dB and a frequency range determined by the detector used. With TM9953 type ρ bridge can be used for precision voltage standing wave ratio measurement, it works in the frequency range from 1MHz to 1000MHz, and it has a built-in amplifier used to improve resolution. The application of these three new components is also described.