67GHz coaxial broadband peak power probe

Abstract

The invention provides a 67GHz coaxial broadband peak power probe. The 67GHz coaxial broadband peak power probe comprises a detecting circuit and a post-detection video processing circuit, wherein the detecting circuit is composed of a 1.85mm coaxial connector, a round gold foil, a corrugated pipe, a 3dB attenuator, a 50 ohm matching network, at least two resonance controlling resistors, at least two low barrier schottky diodes, at least two video filter capacitors and at least one positive coefficient thermistor, and the detecting circuit is used for filtering out carrier waves of pulse modulation signals to obtain envelope signals of the pulse modulation signals. By means of the scheme, achieved typical indexes include that carrier signal frequency range is 500MHz to 67GHz; the peak power dynamic range is (-20) dBm to 20dBm; the pulse rise time is <= 5ns; the input port standing-wave ratio is smaller than 1.6: 1, the post-detection video bandwidth is large, <= 5ns pulse rise / fall time can be measured, and the measurement of <= 5ns pulse rise / fall time is better than that of < 15ns pulse rise / fall time.

Description

technical field [0001] The invention belongs to the technical field of power probes, in particular to a 67GHz coaxial broadband peak power probe. Background technique [0002] With the continuous development of modern electronic equipment and communication equipment, high-frequency power measurement plays an increasingly important role in various equipment and communications, especially in satellite communications and military point-to-point communications, where the frequency used reaches 60GHz. The present invention is a coaxial broadband peak power probe invented in order to meet the demand for peak power measurement in the development of current electronic equipment and communication equipment. [0003] There are several coaxial broadband peak power probes similar to the present invention at present, and wherein the performance index is closest to the present invention has two: [0004] 1. 40GHz coaxial broadband peak power probe, the frequency range is 500MHz~40GHz, th...

AI Technical Summary

Problems solved by technology

[0006] The power sensor mentioned above has the following limitations: the carrier frequency range is narrow, the highest frequency is 40GHz; the pulse rise time is slow, the fastest is <15ns

The highest measurement frequency of 40GHz cannot meet the peak power test requirements of the carrier frequency higher than 40GHz; the pulse rise time is slow, and the narrow pulse with small pulse width or fast rise time cannot be tested

[0007] Therefore, the above two power sensors have certain limitations.

Images