Precision design of slot arrays in reduced-height, dielectric-filled or substrate-integrated waveguide using the full T-network equivalent circuit for array elements

ABSTRACT

Precision design of narrow-beam or shaped-beam slot arrays in reduced-height, dielectric-filled or substrate-integrated waveguide demands accurate control over the excitation of individual elements. Conventional design methods are restricted by assumptions pertaining to the symmetry of slot fields and the simplified shunt-element equivalent circuit for slots. In this paper, we present a detailed formulation of a design technique that accommodates asymmetric slots fields and uses the full T-network equivalent circuit for each slot. The method is efficient and capable of rapid design of arrays of arbitrary dimension.

KEYWORDS:

• Antenna arrays
• equivalent circuit
• slot antennas
• waveguide arrays

Disclosure statement

No potential conflict of interest was reported by the author(s).

Correction Statement

This article has been corrected with minor changes. These changes do not impact the academic content of the article.