Answered: An X-band (λ = 3 cm) T/R module uses a…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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An X-band (λ = 3 cm) T/R module uses a power amplifier that exhibits a power added
efficiency on transmit of nominally 33% over a peak output power range from 0.1 W to 10 W
at 20% transmit duty cycle. In the transmit mode the module also requires 250 mW of DC
power to power the background control electronics. In the receive mode the module requires
500 mW of DC power, including background control electronics. A radar is required to have
a power-aperture-gain product of 80 dBWm2. Assume nominally 4,000 elements per square
meter as an element density to satisfy scan volume requirements. Tabulate and plot the DC
prime power required by the array for peak module powers from 0.1 W to 10 W and examine
the results.

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