New Feed Mechanism for Dual-Polarized Microstrip Ring Patch Antenna

Po Kai Wang, Ting Hung Ko, Jeen-Sheen Row

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A novel feed mechanism for microstrip patch antennas is presented. The structure of the feed can be regarded as a coaxial balun, and it can be resonant in a one-wavelength loop mode. When the loop mode is properly coupled with the fundamental mode of the microstrip antenna, a broad impedance bandwidth and a symmetrical radiation pattern can be obtained. For the proposed feed, parametric analyses are first performed when it is applied into a square-ring patch antenna. Based on the simulation results, a dual-polarized ring patch antenna is then developed, and its prototype is constructed. Both measured and simulated results indicate that the antenna prototype has a gain of higher than 8 dBi and a cross polarization level of lower than -25 dB within an impedance bandwidth of about 12 %. In addition, the two orthogonal input ports has an isolation level of smaller than -30 dB across the whole operating frequency band.

Original languageEnglish
Title of host publication13th European Conference on Antennas and Propagation, EuCAP 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9788890701887
Publication statusPublished - 2019 Mar 1
Event13th European Conference on Antennas and Propagation, EuCAP 2019 - Krakow, Poland
Duration: 2019 Mar 312019 Apr 5

Publication series

Name13th European Conference on Antennas and Propagation, EuCAP 2019

Conference

Conference13th European Conference on Antennas and Propagation, EuCAP 2019
CountryPoland
CityKrakow
Period19-03-3119-04-05

Fingerprint

patch antennas
Antenna feeders
Microstrip antennas
microstrip antennas
rings
prototypes
impedance
bandwidth
cross polarization
isolation
Bandwidth
antennas
Frequency bands
radiation
wavelengths
Polarization
Antennas
simulation
Wavelength

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Instrumentation

Cite this

Wang, P. K., Ko, T. H., & Row, J-S. (2019). New Feed Mechanism for Dual-Polarized Microstrip Ring Patch Antenna. In 13th European Conference on Antennas and Propagation, EuCAP 2019 [8739260] (13th European Conference on Antennas and Propagation, EuCAP 2019). Institute of Electrical and Electronics Engineers Inc..
Wang, Po Kai ; Ko, Ting Hung ; Row, Jeen-Sheen. / New Feed Mechanism for Dual-Polarized Microstrip Ring Patch Antenna. 13th European Conference on Antennas and Propagation, EuCAP 2019. Institute of Electrical and Electronics Engineers Inc., 2019. (13th European Conference on Antennas and Propagation, EuCAP 2019).
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title = "New Feed Mechanism for Dual-Polarized Microstrip Ring Patch Antenna",
abstract = "A novel feed mechanism for microstrip patch antennas is presented. The structure of the feed can be regarded as a coaxial balun, and it can be resonant in a one-wavelength loop mode. When the loop mode is properly coupled with the fundamental mode of the microstrip antenna, a broad impedance bandwidth and a symmetrical radiation pattern can be obtained. For the proposed feed, parametric analyses are first performed when it is applied into a square-ring patch antenna. Based on the simulation results, a dual-polarized ring patch antenna is then developed, and its prototype is constructed. Both measured and simulated results indicate that the antenna prototype has a gain of higher than 8 dBi and a cross polarization level of lower than -25 dB within an impedance bandwidth of about 12 {\%}. In addition, the two orthogonal input ports has an isolation level of smaller than -30 dB across the whole operating frequency band.",
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Wang, PK, Ko, TH & Row, J-S 2019, New Feed Mechanism for Dual-Polarized Microstrip Ring Patch Antenna. in 13th European Conference on Antennas and Propagation, EuCAP 2019., 8739260, 13th European Conference on Antennas and Propagation, EuCAP 2019, Institute of Electrical and Electronics Engineers Inc., 13th European Conference on Antennas and Propagation, EuCAP 2019, Krakow, Poland, 19-03-31.

New Feed Mechanism for Dual-Polarized Microstrip Ring Patch Antenna. / Wang, Po Kai; Ko, Ting Hung; Row, Jeen-Sheen.

13th European Conference on Antennas and Propagation, EuCAP 2019. Institute of Electrical and Electronics Engineers Inc., 2019. 8739260 (13th European Conference on Antennas and Propagation, EuCAP 2019).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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N2 - A novel feed mechanism for microstrip patch antennas is presented. The structure of the feed can be regarded as a coaxial balun, and it can be resonant in a one-wavelength loop mode. When the loop mode is properly coupled with the fundamental mode of the microstrip antenna, a broad impedance bandwidth and a symmetrical radiation pattern can be obtained. For the proposed feed, parametric analyses are first performed when it is applied into a square-ring patch antenna. Based on the simulation results, a dual-polarized ring patch antenna is then developed, and its prototype is constructed. Both measured and simulated results indicate that the antenna prototype has a gain of higher than 8 dBi and a cross polarization level of lower than -25 dB within an impedance bandwidth of about 12 %. In addition, the two orthogonal input ports has an isolation level of smaller than -30 dB across the whole operating frequency band.

AB - A novel feed mechanism for microstrip patch antennas is presented. The structure of the feed can be regarded as a coaxial balun, and it can be resonant in a one-wavelength loop mode. When the loop mode is properly coupled with the fundamental mode of the microstrip antenna, a broad impedance bandwidth and a symmetrical radiation pattern can be obtained. For the proposed feed, parametric analyses are first performed when it is applied into a square-ring patch antenna. Based on the simulation results, a dual-polarized ring patch antenna is then developed, and its prototype is constructed. Both measured and simulated results indicate that the antenna prototype has a gain of higher than 8 dBi and a cross polarization level of lower than -25 dB within an impedance bandwidth of about 12 %. In addition, the two orthogonal input ports has an isolation level of smaller than -30 dB across the whole operating frequency band.

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Wang PK, Ko TH, Row J-S. New Feed Mechanism for Dual-Polarized Microstrip Ring Patch Antenna. In 13th European Conference on Antennas and Propagation, EuCAP 2019. Institute of Electrical and Electronics Engineers Inc. 2019. 8739260. (13th European Conference on Antennas and Propagation, EuCAP 2019).