Microwave Communication Questions

• At a frequency equal to cutoff frequency in a rectangular wave guide
• Microwaves are used for
• A line slightly longer than length and short circuited at far end behaves as
• In a microwave resistor the wall thickness is made as small as possible to
• The beam of a radar should be
• Which of the following modes cannot exist in rectangular resonant cavity?
• In a klystron amplifier the transit time of electron passing the gap in the cavity should be
• Consider the following statements about hybrid ring Ports 1 and 2 are decoupled. Port 3 and 4 are coupled. A signal entering either port 1 or 2 splits equally between ports 3 and 4. A signal entering either port 3 or 4 splits equally between ports 1 and 2. Which of the above are correct?