NDLI: Recent improvements to dual ridge waveguide horn antennas: The 200MHz to 2000MHz and 18GHz to 40GHz models

Content Provider	IEEE Xplore Digital Library
Author	Rodriguez, V.
Copyright Year	2009
Description	Author affiliation: ETS-Lindgren L.P., 1301 Arrow Point Dr. Cedar Park TX 78613, USA (Rodriguez, V.)
Abstract	Dual-Ridged Horn Antenna (DRHA) are a workhorse in EMC and Antenna Pattern Measurement laboratories. Their broadband capability allows the user to test over a wide frequency ranges without the need to stop the test to change antennas. Recently these antennas came under scrutiny when Burns, Leuchtmann, and Vahldieck showed the pattern problems at the upper end of their band. Since their work new models have been introduced that correct the problems of DRHA in the 1 to 18GHz range. In the present paper a commercially available Computational Electromagnetics (CEM) package is used to analyze the 200MHz to 2GHz and the 18 to 40GHz versions of the DRHA family. Gain, antenna factor (AF) and VSWR are computed. A prototype of the new version is measured. The measured results validate the computed predictions. The result is a DRHA with a smoother gain. This antenna maintains a single lobe in the radiation pattern at 2GHz, the upper end of its range than the traditional DRHA design. These improvements increase the frequency band of the antenna from 2GHz to 2.5GHz. The analysis of the 18 to 40GHz antenna shows that the pattern illumination is improved by the use of open sides as shown by the author in previous papers The resulting antennas are better suited for EMC measurements through their specified entire frequency range. Additionally their better illumination makes these antennas ideal for use on other areas such as antenna measurements and reflector illumination.
Starting Page	24
Ending Page	27
File Size	692624
Page Count	4
File Format	PDF
ISBN	9781424442669
DOI	10.1109/ISEMC.2009.5284596
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-08-17
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Horn antennas Antenna measurements Frequency Lighting Electromagnetic compatibility Testing Broadband antennas Electromagnetic measurements Reflector antennas Electromagnetic waveguides
Content Type	Text
Resource Type	Article

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