Abstract
A reconfigurable design is proposed to improve the circular polarization (CP) operating bandwidth of an annular-ring slot antenna fed with an L-shaped coupling strip. The design involves four voltage-controlled varactor diodes, which are placed below the slot and symmetrically distributed along the circumference of the slot. When all antenna dimensions remain constant, the CP operating frequency of the slot antenna can be decreased by varying dc voltage values. In addition, theses CP operating frequencies, which are corresponding to different dc voltage values can form a successive frequency band, and the available CP bandwidth is thus improved. Experimental results indicate that with the reconfigurable design, the 3-dB axial-ratio CP bandwidth can be increased by a factor of 4 for the annular-ring slot antenna with a reflector.
| Original language | English |
|---|---|
| Pages (from-to) | 1377-1380 |
| Number of pages | 4 |
| Journal | Microwave and Optical Technology Letters |
| Volume | 52 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2010 Jun 1 |
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All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Atomic and Molecular Physics, and Optics
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A reconfigurable design for bandwidth enhancement of circularly polarized slot antennas. / Hsieh, Tsung Hsun; Row, Jeen-Sheen.
In: Microwave and Optical Technology Letters, Vol. 52, No. 6, 01.06.2010, p. 1377-1380.Research output: Contribution to journal › Article
TY - JOUR
T1 - A reconfigurable design for bandwidth enhancement of circularly polarized slot antennas
AU - Hsieh, Tsung Hsun
AU - Row, Jeen-Sheen
PY - 2010/6/1
Y1 - 2010/6/1
N2 - A reconfigurable design is proposed to improve the circular polarization (CP) operating bandwidth of an annular-ring slot antenna fed with an L-shaped coupling strip. The design involves four voltage-controlled varactor diodes, which are placed below the slot and symmetrically distributed along the circumference of the slot. When all antenna dimensions remain constant, the CP operating frequency of the slot antenna can be decreased by varying dc voltage values. In addition, theses CP operating frequencies, which are corresponding to different dc voltage values can form a successive frequency band, and the available CP bandwidth is thus improved. Experimental results indicate that with the reconfigurable design, the 3-dB axial-ratio CP bandwidth can be increased by a factor of 4 for the annular-ring slot antenna with a reflector.
AB - A reconfigurable design is proposed to improve the circular polarization (CP) operating bandwidth of an annular-ring slot antenna fed with an L-shaped coupling strip. The design involves four voltage-controlled varactor diodes, which are placed below the slot and symmetrically distributed along the circumference of the slot. When all antenna dimensions remain constant, the CP operating frequency of the slot antenna can be decreased by varying dc voltage values. In addition, theses CP operating frequencies, which are corresponding to different dc voltage values can form a successive frequency band, and the available CP bandwidth is thus improved. Experimental results indicate that with the reconfigurable design, the 3-dB axial-ratio CP bandwidth can be increased by a factor of 4 for the annular-ring slot antenna with a reflector.
UR - http://www.scopus.com/inward/record.url?scp=77952177631&partnerID=8YFLogxK
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U2 - 10.1002/mop.25192
DO - 10.1002/mop.25192
M3 - Article
AN - SCOPUS:77952177631
VL - 52
SP - 1377
EP - 1380
JO - Microwave and Optical Technology Letters
JF - Microwave and Optical Technology Letters
SN - 0895-2477
IS - 6
ER -