Conformal spiral antenna

Conformal spiral antenna

An electrically small, microstrip radiator designed for small-diameter missile applications. The preferred embodiment comprises a cylindrical tube of epoxy fiberglass dielectric having a spiral conducting strip formed thereon. The tubular construction permits the antenna to be conformally mounted to...

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Hauptverfasser: FARRAR, FREDERICK G, SINDORIS, ARTHUR R, SCHAUBERT, DANIEL H
Format: Patent
Sprache:eng
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ANTENNAS, i.e. RADIO AERIALS
BASIC ELECTRIC ELEMENTS
ELECTRICITY
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creator FARRAR, FREDERICK G
SINDORIS, ARTHUR R
SCHAUBERT, DANIEL H
description An electrically small, microstrip radiator designed for small-diameter missile applications. The preferred embodiment comprises a cylindrical tube of epoxy fiberglass dielectric having a spiral conducting strip formed thereon. The tubular construction permits the antenna to be conformally mounted to the surface of the missile. RF input coupling may be achieved by an inductive post, and high radiation efficiency is obtained by strongly coupling RF currents to the body of the missile and exciting the dipolar mode of radiation. The design includes means for mechanically tuning the antenna over a narrow frequency range. The resultant spiral-slot antenna produces an axially polarized radiation field and a dipole radiation pattern with isotropic gain in a low cost and rugged construction.
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subjects ANTENNAS, i.e. RADIO AERIALS
BASIC ELECTRIC ELEMENTS
ELECTRICITY
title Conformal spiral antenna
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