A New Type of Turnstile Antenna

This paper presents a new type of turnstile antenna, realized with two crossed dipoles connected in parallel. Feeding of the dipoles in phase quadrature to obtain an omnidirectional radiation pattern is achieved by optimizing their impedances to be complex conjugates. The dipoles are realized with a...

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Bibliographic Details
Published inIEEE antennas & propagation magazine Vol. 52; no. 5; pp. 168 - 171
Main Authors Radnovic, Ivana, Nesic, Aleksandar, Milovanovic, Bratislav
Format Magazine Article
LanguageEnglish
Published New York IEEE 01.10.2010
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Aluminum
Antennas
Baluns
Dipoles
Frequency ranges
horizontal polarization
Inductors
omnidirectional radiation pattern
Transmitting antennas
Turnstile antenna
Turnstile antennas
UHF
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Summary:This paper presents a new type of turnstile antenna, realized with two crossed dipoles connected in parallel. Feeding of the dipoles in phase quadrature to obtain an omnidirectional radiation pattern is achieved by optimizing their impedances to be complex conjugates. The dipoles are realized with aluminum strips. A balun - the transition from the antenna to a coaxial cable - is accomplished with lumped parameters: two capacitors and two inductors. The concept of the turnstile antenna presented can be used in the VHF and UHF frequency ranges. The measured results show very good agreement with those obtained by simulation. The antenna is also characterized by simple manufacturing and low cost.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1045-9243
1558-4143
DOI:10.1109/MAP.2010.5687522