A Planar Reconfigurable Focal Plane Array Antenna for 24 GHz

Conference contribution
(Conference Contribution)

Publication Details

Author(s): Sporer M, Weigel R, Kölpin A
Publication year: 2016
Conference Proceedings Title: IEEE International Microwave Symposium
Pages range: 1-3
Language: English


This paper presents a reconfigurable focal plane array (FPA) for lens or reflector based antenna systems in the 24 GHz ISM band. The FPA consists of five equal uniformlyspaced antenna elements with switchable polarization, fabricated on a four layer substrate using conventional low-cost PCB technology. For compactness and increased bandwidth, the design is based on aperture-coupled patch radiators on top of the substrate, each embedded in a cavity in order to reduce mutual coupling. Feeding is done by means of two orthogonal H-shaped slots which are excited by microstrip transmission lines etched on the bottom layer. A discrete pin-diode single pole, double throw (SPDT) switch directly below the patch allows for polarization control and facilitates a compact element size of 10mm x 10 mm including the cavity walls. Another discrete pin-diode SP5T switch allows the selection of one of the five FPA elements at a time.

FAU Authors / FAU Editors

Kölpin, Alexander PD Dr.
Lehrstuhl für Technische Elektronik
Sporer, Michael
Lehrstuhl für Technische Elektronik
Weigel, Robert Prof. Dr.-Ing.
Lehrstuhl für Technische Elektronik

How to cite

Sporer, M., Weigel, R., & Kölpin, A. (2016). A Planar Reconfigurable Focal Plane Array Antenna for 24 GHz. In IEEE International Microwave Symposium (pp. 1-3). San Francisco, US.

Sporer, Michael, Robert Weigel, and Alexander Kölpin. "A Planar Reconfigurable Focal Plane Array Antenna for 24 GHz." Proceedings of the IEEE International Microwave Symposium (IMS), San Francisco 2016. 1-3.


Last updated on 2018-10-08 at 14:09