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Content Provider | IEEE Xplore Digital Library |
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Author | Chu, R.S. Lee, K.M. Wang, A. |
Copyright Year | 1995 |
Description | Author affiliation: Microwave Div., Hughes Aerosp. & Electron. Co., El Segundo, CA, USA (Chu, R.S.; Lee, K.M.; Wang, A.) |
Abstract | Multifrequency-band phased array antennas are needed for airborne, shipboard, and ground based radar, communication, and EW applications. Such arrays can provide simultaneous, independently-scanned beams for multi-function operations. We have developed a multi-band phased array aperture which utilizes co-planar dipoles with multiple-feed ports to achieve a different effective dipole length for each operating frequency band. The basic geometry is shown. The radiating elements are connected to multiple excitation ports, where band-pass filters an used to achieve open- or short-circuit behavior at the desired operating frequency. Several frequency-selective ground screen layers may be placed behind the radiating layer to improve the match. The principle of operation is shown, using a dual-band cast as an example. In this simple dual-band case, both frequency bands of operation share a common solid ground plane. The analysis of this infinite array of multi-feed dipoles over a ground plane is given. An aperture design for tri-band operation is presented, together with the verification by waveguide simulator experiments. A parametric study of various ground screen effects is also summarized. |
Starting Page | 1814 |
Ending Page | 1817 |
File Size | 251039 |
Page Count | 4 |
File Format | |
ISBN | 0780327195 |
DOI | 10.1109/APS.1995.530937 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 1995-06-18 |
Publisher Place | USA |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Phased arrays Frequency Radar antennas Apertures Dual band Antenna arrays Dipole antennas Multifrequency antennas Airborne radar Radar applications |
Content Type | Text |
Resource Type | Article |
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