Dipole with an unbalanced microstrip feed

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Authors
Jenn, David C.
Subjects
Advisors
Date of Issue
2014-11-04
Date
Publisher
United States of America as represented by the Secretary of the Navy, Washington, DC (US)
Language
en_US
Abstract
Embodiments in accordance with the invention include a linearly polarized dipole antenna with an unbalanced microstrip feed line. More specifically, embodiments in accordance with the invention utilize a fed dipole connected to a microstrip feed line, and separated a gap distance from a parasitic dipole not connected to the microstrip feed line. When an electrical signal is input to the microstrip feed line, the microstrip feed line creates a current flow in the fed dipole which induces a nearly equal current on the parasitic dipole that is out of phase. The result is a current flow, I, in the same direction in both fed and parasitic dipoles allowing for efficient radiation of the linearly polarized dipole antenna. Embodiments in accordance with the invention eliminate the need for a balun circuit thereby reducing the size, complexity and feed loss of the feed circuit. Embodiments in accordance with the invention are effective for dipoles with relatively small ground planes.
Type
Patent
Description
Patent
Series/Report No
Department
Electrical and Computer Engineering
Organization
Monterey, California : Naval Postgraduate School
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NPS Report Number
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Citation
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
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