Ultra-wideband Circularly Polarized Planar Array Antenna Using Single-Arm-Spiral Elements and Dielectric-based IMGW
Paper i proceeding, 2019

An ultra-wideband circularly polarized (CP) planar array antenna is proposed in this paper. Using the concept of tightly coupled array antenna, the single-arm spiral element obtains good impedance matching and axial ratio (AR) characteristics in an ultra-wide frequency range. The new single-arm spiral element has a single-arm feeding structure which can be easily connected with the feeding network throughout a via. The feeding network is achieved by using dielectric-based inverted microstrip gap waveguide (IMGW) technology. An 8 × 8 CP planar array is designed. The simulated results show that the proposed array achieves a relative impedance bandwidth of 52.8% from 17.87 to 30.7 GHz and 3-dB axial ratio bandwidth of 49.2% from 18.6 to 30.75 GHz.

circularly polarized

dielectric-based IMGW.

ultra-wideband

planar array antenna

Författare

Tianling Zhang

Xidian University

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Antennsystem

Lei Chen

Xidian University

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Antennsystem

Sadegh Mansouri Moghaddam

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Antennsystem

Ashraf Uz Zaman

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Antennsystem

Jian Yang

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Antennsystem

2019 International Symposium on Antennas and Propagation, ISAP 2019 - Proceedings

8963492

2019 International Symposium on Antennas and Propagation, ISAP 2019
Xian, China,

Ämneskategorier

Telekommunikation

Kommunikationssystem

Annan elektroteknik och elektronik

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Senast uppdaterat

2020-07-16