Design of a Cosecant-Squared Pattern Antenna Fed by a New Butler Matrix Topology for Base Station at 42 GHz

• Published in: IEEE antennas and wireless propagation letters Vol. 7; pp. 354 - 357
• Main Authors: Koubeissi, M., Freytag, L., Decroze, C., Monediere, T.
• Format: Journal Article
• Language: English
• Published: New York IEEE 01-01-2008; The Institute of Electrical and Electronics Engineers, Inc. (IEEE); Institute of Electrical and Electronics Engineers
• Subjects: Antenna arrays; Array signal processing; Base stations; Butler matrix; cosecant-squared pattern; Directional antennas; Feeds; local multipoint distribution service (LMDS) system; Microstrip antennas; millimeter wave; multibeam antenna; Shadow mapping; Substrates; switched beam antenna; Topology; LMDS system; millimeter wave; Cosecant-squared pattern; Switched beam antenna; Butler matrix; Multibeam antenna
• ISSN: 1536-1225; 1548-5757
• DOI: 10.1109/LAWP.2008.921340

The purpose of this letter is to offer new performance characteristics to base station antennas. The proposed antenna is developed for the European project BROADWAN framework. We propose a new switched beam antenna array based on the 5 times 8 novel Butler matrix topology which provides a cosecant squared elevation pattern. In this letter, the implementation of the beamforming network and the cosecant squared feed lines at 42 GHz are detailed and a comparison between simulated and experimental results is presented.