Abstract
A compact design of circularly polarized microstrip antennas is described. The antenna has a square-ring radiating patch, and it is excited by a feeding network consisting of a quadrature coupler with dual lumped capacitors and an impedance-matching circuit. The feeding network has a considerably smaller size than a traditional 90° hybrid, and therefore, it is placed at the inner slot of the square-ring patch. By tuning the capacitance value of the lumped capacitors, the antenna can generate good circular polarization radiation. An antenna prototype designed for global positioning system applications is implemented. From the measured results, the 10 dB-return-loss bandwidth and 3 dB-axial-ratio bandwidth of the prototype are 3% and 1%, respectively. Simulation results obtained by HFSS are also provided to validate the experiment. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1293-1296, 2014
| Original language | English |
|---|---|
| Pages (from-to) | 1293-1296 |
| Number of pages | 4 |
| Journal | Microwave and Optical Technology Letters |
| Volume | 56 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2014 Jan 1 |
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All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Atomic and Molecular Physics, and Optics
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering
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Compact circularly polarized microstrip antenna for GPS applications. / Hou, Ming Jyun; Row, Jeen-Sheen.
In: Microwave and Optical Technology Letters, Vol. 56, No. 6, 01.01.2014, p. 1293-1296.Research output: Contribution to journal › Article
TY - JOUR
T1 - Compact circularly polarized microstrip antenna for GPS applications
AU - Hou, Ming Jyun
AU - Row, Jeen-Sheen
PY - 2014/1/1
Y1 - 2014/1/1
N2 - A compact design of circularly polarized microstrip antennas is described. The antenna has a square-ring radiating patch, and it is excited by a feeding network consisting of a quadrature coupler with dual lumped capacitors and an impedance-matching circuit. The feeding network has a considerably smaller size than a traditional 90° hybrid, and therefore, it is placed at the inner slot of the square-ring patch. By tuning the capacitance value of the lumped capacitors, the antenna can generate good circular polarization radiation. An antenna prototype designed for global positioning system applications is implemented. From the measured results, the 10 dB-return-loss bandwidth and 3 dB-axial-ratio bandwidth of the prototype are 3% and 1%, respectively. Simulation results obtained by HFSS are also provided to validate the experiment. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1293-1296, 2014
AB - A compact design of circularly polarized microstrip antennas is described. The antenna has a square-ring radiating patch, and it is excited by a feeding network consisting of a quadrature coupler with dual lumped capacitors and an impedance-matching circuit. The feeding network has a considerably smaller size than a traditional 90° hybrid, and therefore, it is placed at the inner slot of the square-ring patch. By tuning the capacitance value of the lumped capacitors, the antenna can generate good circular polarization radiation. An antenna prototype designed for global positioning system applications is implemented. From the measured results, the 10 dB-return-loss bandwidth and 3 dB-axial-ratio bandwidth of the prototype are 3% and 1%, respectively. Simulation results obtained by HFSS are also provided to validate the experiment. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1293-1296, 2014
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U2 - 10.1002/mop.28335
DO - 10.1002/mop.28335
M3 - Article
AN - SCOPUS:84898938284
VL - 56
SP - 1293
EP - 1296
JO - Microwave and Optical Technology Letters
JF - Microwave and Optical Technology Letters
SN - 0895-2477
IS - 6
ER -