Abstract
A reconfigurable design for a dual-feed square-ring microstrip patch antenna is described. The dual feeds are used to excite two orthogonal modes of the antenna, and each feed network is composed of a coupling patch, an impedance transformer, and a variable capacitor. In addition, the two feeds are connected to a single input port through a T-junction power divider. The proposed design can perform polarization diversity at different frequencies by tuning the capacitance values of the two capacitors. A prototype integrating with a pair of varactor diodes and related dc bias circuits is constructed. Typical experimental results are shown along with numerical simulation results. Both of them demonstrate that the prototype can provide one linear polarization and two circular polarizations at one operating frequency; moreover, the operating frequency can also be tuned to adjacent frequencies.
| Original language | English |
|---|---|
| Article number | 6425417 |
| Pages (from-to) | 2857-2860 |
| Number of pages | 4 |
| Journal | IEEE Transactions on Antennas and Propagation |
| Volume | 61 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2013 Jan 1 |
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All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering
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Reconfigurable square-ring microstrip antenna. / Tsai, Jia Fu; Row, Jeen Sheen.
In: IEEE Transactions on Antennas and Propagation, Vol. 61, No. 5, 6425417, 01.01.2013, p. 2857-2860.Research output: Contribution to journal › Article
TY - JOUR
T1 - Reconfigurable square-ring microstrip antenna
AU - Tsai, Jia Fu
AU - Row, Jeen Sheen
PY - 2013/1/1
Y1 - 2013/1/1
N2 - A reconfigurable design for a dual-feed square-ring microstrip patch antenna is described. The dual feeds are used to excite two orthogonal modes of the antenna, and each feed network is composed of a coupling patch, an impedance transformer, and a variable capacitor. In addition, the two feeds are connected to a single input port through a T-junction power divider. The proposed design can perform polarization diversity at different frequencies by tuning the capacitance values of the two capacitors. A prototype integrating with a pair of varactor diodes and related dc bias circuits is constructed. Typical experimental results are shown along with numerical simulation results. Both of them demonstrate that the prototype can provide one linear polarization and two circular polarizations at one operating frequency; moreover, the operating frequency can also be tuned to adjacent frequencies.
AB - A reconfigurable design for a dual-feed square-ring microstrip patch antenna is described. The dual feeds are used to excite two orthogonal modes of the antenna, and each feed network is composed of a coupling patch, an impedance transformer, and a variable capacitor. In addition, the two feeds are connected to a single input port through a T-junction power divider. The proposed design can perform polarization diversity at different frequencies by tuning the capacitance values of the two capacitors. A prototype integrating with a pair of varactor diodes and related dc bias circuits is constructed. Typical experimental results are shown along with numerical simulation results. Both of them demonstrate that the prototype can provide one linear polarization and two circular polarizations at one operating frequency; moreover, the operating frequency can also be tuned to adjacent frequencies.
UR - http://www.scopus.com/inward/record.url?scp=84877258886&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84877258886&partnerID=8YFLogxK
U2 - 10.1109/TAP.2013.2244554
DO - 10.1109/TAP.2013.2244554
M3 - Article
AN - SCOPUS:84877258886
VL - 61
SP - 2857
EP - 2860
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
SN - 0018-926X
IS - 5
M1 - 6425417
ER -