High-Performance Wideband Horn Antenna for Direction Arrays
Paper in proceedings, 2020

In this paper, a structure and design procedure of a novel double ridged horn antenna with a Gaussian amplitude radiation pattern and stable phase center for two-element direction finding arrays is presented. The radiation properties of the structure are improved through appropriate profiling of the ridge taper and utilization of an elliptical aperture. Furthermore, rigorous numerical optimization is employed to adjust the antenna geometry parameter values. The achieved impedance bandwidth (VSWR < 2) is from 1.5 GHz to 12 GHz (8:1). The antenna exhibits 7 dBi to 20 dBi gain, better than 85% aperture efficiency, > 10 dB side lobe level, as well as low phase center variation (< 5 cm over the operating band). The aforementioned features make the proposed antenna suitable for the amplitude and phase hybrid direction finding applications. The design is validated numerically in CST Microwave Studio.

wideband antennas

interferometry

phase center

horn antennas

EM-driven design

Author

Saeed Manshari

Reykjavik University

Slawomir Koziel

Reykjavik University

Leifur Leiffson

Iowa State University

Andres Alayon Glazunov

University of Twente

Chalmers, Electrical Engineering, Communication and Antenna Systems, Antennas

2020 14TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP 2020)

2164-3342 (ISSN)

14th European Conference on Antennas and Propagation (EuCAP)
Copenhagen, Denmark,

Subject Categories

Aerospace Engineering

Other Physics Topics

Signal Processing

More information

Latest update

11/12/2020