Electronics and Communication Engineering - Microwave Communication - Discussion

28. 

The path length between ports 1 and 2 for the two waves in a hybrid ring is

[A]. 1
[B].
[C].
[D].

Answer: Option C

Explanation:

The quantities required to be measured in microwave circuits are frequency, power and impedance.

Microwave frequency measurement is done by slotted line, resonant cavities and transfer oscillator.

Microwave power measurement uses bolometers and microwave power meters.

A self balancing bridge working on the principle of power substitution is commonly used.

Microwave impedance measurement is done by measurement of reflection coefficient and VSWR.

A slotted line and probe is a basic tool for these measurements.' Network analyser enables rapid impedance measurement over a broad frequency range.


Jinto said: (Sep 16, 2016)  
I think the answer should be D.

Chauhan said: (Jun 16, 2017)  
The correct answer is option D.

@Hir said: (Mar 31, 2018)  
Distance between port 1 & port 2 = wavelength/4.

Distance between port 1 & port 4 = 3 wavelength/4.

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