2004•Unpublished venueRequires access

General formulas for a 2D leaky-wave antenna

Tianxia Zhao, David R. Jackson, Jeffery T. Williams, A.A. Oliner

Abstract

General closed-form expressions for a 2D leaky-wave antenna (LWA) are obtained, based on a TEN (transverse equivalent network) model. Results for the radiation pattern, the peak field value, the pattern beamwidth, and the pattern bandwidth are obtained. The closed-form expressions are quite accurate for narrow-beam LWA structures. The new expressions explain many of the physical properties of LWA patterns that are observed, such as why narrow-beam scanning down to endfire is possible in the H-plane, but not the E-plane.

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Key concepts: Beamwidth, Leaky wave antenna, Radiation pattern, Transverse plane, Physics, Optics, Bandwidth (computing), Antenna (radio)