Abstract
In this paper, a balanced CPW-fed circularly polarized (CP) antenna is proposed. The antenna consists of two L-shaped monopole radiating elements which are deployed perpendicular to each other to excite orthogonal radiation fields. A 90° delay line section is embedded in one of the differential feedlines to provide 90° phase difference between signals fed to the two input ports. The combination of the above designs were verified to give good CP radiation field patterns. In addition, to suppress the common-mode signals, a half-wavelength CPW line section is connected between the two feedlines for producing a transmission zero in the DM passband under CM operation. For the designed balanced CP antenna, Measurement shows that the S11 dd ≤-10dB DM operating band covers a frequency range of 2.04-2.87 GHz. Very good CM suppression was observed with the measured CM reflection coefficient greater than-3 dB for 2.1-2.86 GHz. The simulated 3-dB axial ratio band is 2.38-2.54 GHz.
| Original language | English |
|---|---|
| Title of host publication | 2017 International Symposium on Antennas and Propagation, ISAP 2017 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 1-2 |
| Number of pages | 2 |
| ISBN (Electronic) | 9781538604656 |
| DOIs | |
| Publication status | Published - 2017 Dec 19 |
| Event | 2017 International Symposium on Antennas and Propagation, ISAP 2017 - Phuket, Thailand Duration: 2017 Oct 30 → 2017 Nov 2 |
Publication series
| Name | 2017 International Symposium on Antennas and Propagation, ISAP 2017 |
|---|---|
| Volume | 2017-January |
Other
| Other | 2017 International Symposium on Antennas and Propagation, ISAP 2017 |
|---|---|
| Country | Thailand |
| City | Phuket |
| Period | 17-10-30 → 17-11-02 |
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All Science Journal Classification (ASJC) codes
- Computer Networks and Communications
- Instrumentation
Cite this
}
Design of balanced CPW-Fed L-shaped CP antenna. / Chen, Wen Jie; Chen, Wen Xuan; Lee, Ching-Her.
2017 International Symposium on Antennas and Propagation, ISAP 2017. Institute of Electrical and Electronics Engineers Inc., 2017. p. 1-2 (2017 International Symposium on Antennas and Propagation, ISAP 2017; Vol. 2017-January).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Design of balanced CPW-Fed L-shaped CP antenna
AU - Chen, Wen Jie
AU - Chen, Wen Xuan
AU - Lee, Ching-Her
PY - 2017/12/19
Y1 - 2017/12/19
N2 - In this paper, a balanced CPW-fed circularly polarized (CP) antenna is proposed. The antenna consists of two L-shaped monopole radiating elements which are deployed perpendicular to each other to excite orthogonal radiation fields. A 90° delay line section is embedded in one of the differential feedlines to provide 90° phase difference between signals fed to the two input ports. The combination of the above designs were verified to give good CP radiation field patterns. In addition, to suppress the common-mode signals, a half-wavelength CPW line section is connected between the two feedlines for producing a transmission zero in the DM passband under CM operation. For the designed balanced CP antenna, Measurement shows that the S11 dd ≤-10dB DM operating band covers a frequency range of 2.04-2.87 GHz. Very good CM suppression was observed with the measured CM reflection coefficient greater than-3 dB for 2.1-2.86 GHz. The simulated 3-dB axial ratio band is 2.38-2.54 GHz.
AB - In this paper, a balanced CPW-fed circularly polarized (CP) antenna is proposed. The antenna consists of two L-shaped monopole radiating elements which are deployed perpendicular to each other to excite orthogonal radiation fields. A 90° delay line section is embedded in one of the differential feedlines to provide 90° phase difference between signals fed to the two input ports. The combination of the above designs were verified to give good CP radiation field patterns. In addition, to suppress the common-mode signals, a half-wavelength CPW line section is connected between the two feedlines for producing a transmission zero in the DM passband under CM operation. For the designed balanced CP antenna, Measurement shows that the S11 dd ≤-10dB DM operating band covers a frequency range of 2.04-2.87 GHz. Very good CM suppression was observed with the measured CM reflection coefficient greater than-3 dB for 2.1-2.86 GHz. The simulated 3-dB axial ratio band is 2.38-2.54 GHz.
UR - http://www.scopus.com/inward/record.url?scp=85046618992&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85046618992&partnerID=8YFLogxK
U2 - 10.1109/ISANP.2017.8228972
DO - 10.1109/ISANP.2017.8228972
M3 - Conference contribution
AN - SCOPUS:85046618992
T3 - 2017 International Symposium on Antennas and Propagation, ISAP 2017
SP - 1
EP - 2
BT - 2017 International Symposium on Antennas and Propagation, ISAP 2017
PB - Institute of Electrical and Electronics Engineers Inc.
ER -