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• A symmetric directional coupler has an infinite directivity and a forward attenuation of 20 dB. The coupler is used to monitor the power delivered to a load Z/as shown in Fig. P4-26. Bolometer 1 introduces a VSWR of 2.0 on arm 1; bolometer 2 is matched to arm 2. If bolometer 1 reads 9 mW and bolometer 2 reads 3 mW: a. Find the amount of power dissipated in the load Z/. • b. Determine the VSWR on arm 3.

• A symmetric directional coupler has an infinite directivity and a forward attenuation of 20 dB. The coupler is used to monitor the power delivered to a load Z/as shown in Fig. P4-26. Bolometer 1 introduces a VSWR of 2.0 on arm 1; bolometer 2 is matched to arm 2. If bolometer 1 reads 9 mW and bolometer 2 reads 3 mW: a. Find the amount of power dissipated in the load Z/. • b. Determine the VSWR on arm 3.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Ex2: • A symmetric directional coupler has an infinite directivity and a forward attenuation of 20 dB. The coupler is used to monitor the power delivered to a load Z/as shown in Fig. P4-26. Bolometer 1 introduces a VSWR of 2.0 on arm 1; bolometer 2 is matched to arm 2. If bolometer 1 reads 9 mW and bolometer 2 reads 3 mW: • a. Find the amount of power dissipated in the load Zl. • b. Determine the VSWR on arm 3. VSWR - 2.0 Bolometer 2 Bolometer 20 dB P4-26
Transcribed Image Text:Ex2: • A symmetric directional coupler has an infinite directivity and a forward attenuation of 20 dB. The coupler is used to monitor the power delivered to a load Z/as shown in Fig. P4-26. Bolometer 1 introduces a VSWR of 2.0 on arm 1; bolometer 2 is matched to arm 2. If bolometer 1 reads 9 mW and bolometer 2 reads 3 mW: • a. Find the amount of power dissipated in the load Zl. • b. Determine the VSWR on arm 3. VSWR - 2.0 Bolometer 2 Bolometer 20 dB P4-26
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