Abstract
Using the method of moments, we analyze a novel dual-loop antenna backed by a conducting plane reflector. Special attention is paid to the bandwidth for a 3-dB axial-ratio criterion. First, a reference dual loop having a symmetric antenna configuration is investigated with a balanced feed. On the basis of the radiation characteristics, a dual loop having an asymmetric antenna configuration is designed. It is found that the bandwidth is twice as wide as that of the reference dual loop. Second, an asymmetric dual loop with an unbalanced feed is realized. Finally, a planar array of the two asymmetric dual loops with an unbalanced feed is constructed, and the radiation characteristics are demonstrated with experimental results.
| Original language | English |
|---|---|
| Article number | 6478802 |
| Pages (from-to) | 1180-1183 |
| Number of pages | 4 |
| Journal | IEEE Antennas and Wireless Propagation Letters |
| Volume | 12 |
| DOIs | |
| Publication status | Published - 2013 |
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Keywords
- Circular polarization
- loop antennas
- wire antennas
ASJC Scopus subject areas
- Electrical and Electronic Engineering
Cite this
Low-profile dual-loop antennas with a straight wire for circular polarization. / Hirose, Kazuhide; Nagata, Yuki; Nakano, Hisamatsu.
In: IEEE Antennas and Wireless Propagation Letters, Vol. 12, 6478802, 2013, p. 1180-1183.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Low-profile dual-loop antennas with a straight wire for circular polarization
AU - Hirose, Kazuhide
AU - Nagata, Yuki
AU - Nakano, Hisamatsu
PY - 2013
Y1 - 2013
N2 - Using the method of moments, we analyze a novel dual-loop antenna backed by a conducting plane reflector. Special attention is paid to the bandwidth for a 3-dB axial-ratio criterion. First, a reference dual loop having a symmetric antenna configuration is investigated with a balanced feed. On the basis of the radiation characteristics, a dual loop having an asymmetric antenna configuration is designed. It is found that the bandwidth is twice as wide as that of the reference dual loop. Second, an asymmetric dual loop with an unbalanced feed is realized. Finally, a planar array of the two asymmetric dual loops with an unbalanced feed is constructed, and the radiation characteristics are demonstrated with experimental results.
AB - Using the method of moments, we analyze a novel dual-loop antenna backed by a conducting plane reflector. Special attention is paid to the bandwidth for a 3-dB axial-ratio criterion. First, a reference dual loop having a symmetric antenna configuration is investigated with a balanced feed. On the basis of the radiation characteristics, a dual loop having an asymmetric antenna configuration is designed. It is found that the bandwidth is twice as wide as that of the reference dual loop. Second, an asymmetric dual loop with an unbalanced feed is realized. Finally, a planar array of the two asymmetric dual loops with an unbalanced feed is constructed, and the radiation characteristics are demonstrated with experimental results.
KW - Circular polarization
KW - loop antennas
KW - wire antennas
UR - http://www.scopus.com/inward/record.url?scp=84885634749&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84885634749&partnerID=8YFLogxK
U2 - 10.1109/LAWP.2013.2281312
DO - 10.1109/LAWP.2013.2281312
M3 - Article
VL - 12
SP - 1180
EP - 1183
JO - IEEE Antennas and Wireless Propagation Letters
JF - IEEE Antennas and Wireless Propagation Letters
SN - 1536-1225
M1 - 6478802
ER -