A very short (1≤ 2/50) vertical electric dipole is mounted on a pole a height h above the ground perfectly conducting, and of infinite extent. The dipole is used as a transmitting antenna in a VHF (f = 50 MHz) ground-to-air communication system. In order for the communication system transmitting antenna signal not to interfere with a nearby radio station, it is necessary to place a null in the vertical dipole system pattern at an angle of 80° from the vertical. What should the shortest height (h) of the dipole be to achieve the desired specifications?

A very short (1≤ 2/50) vertical electric dipole is mounted on a pole a height h above the ground perfectly conducting, and of infinite extent. The dipole is used as a transmitting antenna in a VHF (f = 50 MHz) ground-to-air communication system. In order for the communication system transmitting antenna signal not to interfere with a nearby radio station, it is necessary to place a null in the vertical dipole system pattern at an angle of 80° from the vertical. What should the shortest height (h) of the dipole be to achieve the desired specifications?

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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