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A transmitter circuit with an antenna shown on the left is transformed to the phasor form as shown on the right. The generator resistance is 50 Q2; the antenna is replaced by its equivalent impedance, Za = Za (f) which is a function of frequency f. TX i(t) + VR - R, Za Rg V,(t) V. + V a The antenna impedance has the form: Za (f) = f +(100 – f) j [2] where frequency is measured in MHz. The generator phasor voltage is V, = 10 V. The average average power delivered to the antenna (or any circuit element) with complex impedance Za is given by Pavg = Re (Za)|I]°. At which frequency is the average power delivered to the antenna maximized?

A transmitter circuit with an antenna shown on the left is transformed to the phasor form as shown on the right. The generator resistance is 50 Q2; the antenna is replaced by its equivalent impedance, Za = Za (f) which is a function of frequency f. TX i(t) + VR - R, Za Rg V,(t) V. + V a The antenna impedance has the form: Za (f) = f +(100 – f) j [2] where frequency is measured in MHz. The generator phasor voltage is V, = 10 V. The average average power delivered to the antenna (or any circuit element) with complex impedance Za is given by Pavg = Re (Za)|I]°. At which frequency is the average power delivered to the antenna maximized?

Introductory Circuit Analysis (13th Edition)
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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A transmitter circuit with an antenna shown on the left is transformed to the phasor form as shown on the right. The generator resistance is 50 Q2; the antenna is replaced by its equivalent impedance, Za = Za (f) which is a function of frequency f. TX i(t) + VR - R, Za Rg V,(t) V. + V a The antenna impedance has the form: Za (f) = f +(100 – f) j [2] where frequency is measured in MHz. The generator phasor voltage is V, = 10 V. The average average power delivered to the antenna (or any circuit element) with complex impedance Za is given by Pavg = Re (Za)|I]°. At which frequency is the average power delivered to the antenna maximized?
Transcribed Image Text:A transmitter circuit with an antenna shown on the left is transformed to the phasor form as shown on the right. The generator resistance is 50 Q2; the antenna is replaced by its equivalent impedance, Za = Za (f) which is a function of frequency f. TX i(t) + VR - R, Za Rg V,(t) V. + V a The antenna impedance has the form: Za (f) = f +(100 – f) j [2] where frequency is measured in MHz. The generator phasor voltage is V, = 10 V. The average average power delivered to the antenna (or any circuit element) with complex impedance Za is given by Pavg = Re (Za)|I]°. At which frequency is the average power delivered to the antenna maximized?
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