4. A 35 GHz signal is injected into a vacuum-filled, copper Ku-band waveguide. a) If we are to make a cavity for this signal, what should be the length of the cavity for the TE 101 mode? b) If this cavity is made of copper, what is the quality factor of the cavity?

4. A 35 GHz signal is injected into a vacuum-filled, copper Ku-band waveguide. a) If we are to make a cavity for this signal, what should be the length of the cavity for the TE 101 mode? b) If this cavity is made of copper, what is the quality factor of the cavity?

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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Antenna Characteristics

The antenna is an important concept in the domain of electronics and communication engineering. An antenna forms an integral part of many commonly used devices such as wireless modems, routers, game controllers, mobile phones, bluetooth devices, and so on. In simple terms, any wireless communication makes use of antennas to serve the purpose. An antenna, also known by the term 'arial', is an electrical device that converts electrical signals into electromagnetic waves or electromagnetic waves into electrical signals. An antenna contains a transmission line usually made up of co-axial cable, it then receives the signals and converts them into electromagnetic waves, which are then transmitted via space into their required destination. A communication system essentially makes use of two antennas, a transmission antenna, which converts electrical signals into electromagnetic waves, and a receiving antenna, which receives the electromagnetic waves and converts them back into electrical signals.

Question

4. A 35 GHz signal is injected into a vacuum-filled, copper
Ku-band waveguide.
a) If we are to make a cavity for this signal, what should
be the length of the cavity for the TE₁01 mode?
b) If this cavity is made of copper, what is the quality
factor of the cavity?

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