A Center-Fed Planar Antenna Using A Surface/Leaky Wave,

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Abstract:

A new type of leaky-wave planar antenna for millimeter-wave applications is described. This low cost antenna is an alternative to microstrip arrays for which the transmission line losses seriously limit gain. The circularly polarized antenna uses a surface wave to feed perturbations over a planar dielectric aperture and thus, is not subject to transmission line losses. Also, conventional leaky-wave antennas are side or end fed, which inherently leads to beam scanning as the frequency is varied. This is due to an asymmetrical phase distribution and is undesirable for communication antennas. By center-feeding, the phase is symmetrical and the aperture radiates a broadside beam, the direction of which is independent of frequency.

Author(s):
Carrillo, S. ; Ladds, J.
Author Organization(s):
GTE GOVERNMENT SYSTEMS CORP NEEDHAM HEIGHTS MA COMMUNICATION SYSTEMS DIV
Supplementary Note:
This article is from 'Proceedings of the Antenna Applications Symposium Held on 25-27 September 1991. Volume 1,' AD-A253 682, p284-299.
Pagination:
0016

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*ANTENNAS, *MILLIMETER WAVES, APERTURES, ARRAYS, DIELECTRICS, DISTRIBUTION, FEEDING, FREQUENCY, GAIN, LOSSES, LOW COSTS, PERTURBATIONS, PHASE, SCANNING, SURFACE WAVES, SURFACES, TRANSMISSION LINES
Field(s)/Group(s):
Electrical and Electronic Equipment
Keyword(s):
Leaky wave planer antennas, Millimeter wave applications, Component Reports
Report Date:
1992 Feb 01