๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Helical-feed ultrasonic testing

โœ Scribed by Custom Machine Inc


Publisher
Elsevier Science
Year
1971
Tongue
English
Weight
183 KB
Volume
9
Category
Article
ISSN
0041-624X

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## Abstract A new approach to designing a broadband printed quadrifilar helical antenna (PQHA) is presented. The printed wire is conical in shape, while the feed network is directly integrated underneath the antenna. The entire system is designed using Ansoft HFSS. Good agreement with the experimen