Wideband Circularly Polarized Array Antennas With Sequential-Rotation Polarization Grid and Simplified Full-SIW Feeding Networks

Zhang, Yi‐Xuan; Jiao, Yong‐Chang; Zhang, Li

doi:10.1109/tap.2020.2985065

Cited by 22 publications

(3 citation statements)

References 44 publications

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“…It is shown that our element achieves the widest impedance bandwidth of 40% with the most compact structure. Although [6,19], respectively, achieved the largest bandwidth and the largest gain; however, the designed arrays have a highest profle. At the same time, our designed array achieves the largest CP bandwidth while with the lowest profle.…”

Section: Resultsmentioning

confidence: 97%

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A Ku Wideband Circularly Polarized Microstrip Antenna Array with Low Profile Crossed-Dipole Element

Liu

Zhang

Zhao

2023

International Journal of Antennas and Propagation

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This paper presents a novel Ku wideband circularly polarized (CP) antenna array composed of crossed-dipole element (CDE) and fed through sequential rotation (SR) feeding technique. Unlike the traditional CP-CDE fed by coaxial cable that usually works at low frequencies, the proposed CDE consists of two orthogonal heart-shaped patch dipoles that can work at frequencies as high as Ku-band, at the same time achieving a larger bandwidth. A feeding structure is proposed without welding, so potential errors in the antenna assembly process can be mitigated. A 2 × 2 CP antenna array with wideband SR feeding network is designed based on the CDE to further expand the axial ratio (AR) bandwidth. The designed antenna array is fabricated using the multilayer printed circuit board (PCB) technology and measured in anechoic chamber using the planar near-field measurement facility. The measured results show that −10 dB impedance bandwidth of 44% (11.6–18.15 GHz) along with 3 dB AR bandwidth of 38.7% (12–17.65 GHz) and 3 dB gain bandwidth of 34.6% (12.2–17.3 GHz) as well as 11.02 dBic peak gain have been achieved while maintaining a lower profile.

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Section: Resultsmentioning

confidence: 97%

“…Terefore, they are widely used in satellite communication systems and remote sensing [1][2][3][4]. Besides, the antenna array can achieve higher gain with narrower beamwidth to compensate the spatial attenuation for long-distance communication [5,6].…”

Section: Introductionmentioning

confidence: 99%

A Ku Wideband Circularly Polarized Microstrip Antenna Array with Low Profile Crossed-Dipole Element

Liu

Zhang

Zhao

2023

International Journal of Antennas and Propagation

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“…The Microstrip Line slot feeding the patch antenna generates high back lobe radiation at millimeter-wave frequencies, not to mention the associated loss in the feeding network. In [11], an end-fire log-periodic antenna pointed to the boresight was fed using an SIW feeding network. Such structure has a considerable fabrication complexity.…”

Section: Introductionmentioning

confidence: 99%

Low-Cost Circularly Polarized Millimeter-Wave Antenna Using 3D Additive Manufacturing

et al. 2022

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An efficient single-layer printed feed is used with a low-cost 3D printed polarizer. The feed is made on a single substrate layer. The proposed antenna gain is 15 dBi, and the overlapped impedance-axial ratio bandwidth is 20%. The proposed structure is a low-cost structure that can be fabricated in any modest fabrication facility. The feed does not require any plated vias, which tremendously simplifies the fabrication process and lowers the cost. The feed is very well suited for integration with integrated circuit transceiver systems. The proposed structure does not require any feeding network design. Hence, it relaxes the design process and avoids the losses associated with such feeding network. The proposed element can be employed in an array configuration with adequately suppressed side lobes. The element cost, simplicity, and gain performance are superior to other proposed solutions in the literature.INDEX TERMS Additive manufacturing, circular polarization, high gain antennas, low-cost antennas.

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Tapered high-gain Fabry–Perot cavity antenna with high sidelobe suppression for 5G industry

Hussain,

Lee,

Kim

2023

Sci Rep

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We propose a Fabry–Perot cavity (FPC) antenna to suppress a sidelobe level (SLL) while maintaining a reasonably high gain. Generally, conventional FPC antennas (FPCAs) produce a high SLL because waves in their FPC leak considerably through lateral openings, which is a primary reason for lowering antenna gains. We propose two design approaches to solve this problem: the reflection magnitude tapering of a partially reflective surface (PRS) and considering different incident modes for the PRS design. First, the proposed tapering can remarkably reduce an SLL by providing the PRS with more radiation opportunities. Second, the different incident modes of transverse electric (TE) and transverse magnetic (TM) can increase an antenna gain by considering a more realistic illumination environment of the PRS. We have proven that our antenna provides 19.8 dBi realized gain with high sidelobe suppression (SLS) of more than 23 dB. Consequently, the proposed FPCA can suppress sidelobes significantly while maintaining a high gain. Good agreement between simulations and experiments demonstrates the usefulness of our proposal.

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Wideband Circularly Polarized Array Antennas With Sequential-Rotation Polarization Grid and Simplified Full-SIW Feeding Networks

Cited by 22 publications

References 44 publications

A Ku Wideband Circularly Polarized Microstrip Antenna Array with Low Profile Crossed-Dipole Element

A Ku Wideband Circularly Polarized Microstrip Antenna Array with Low Profile Crossed-Dipole Element

Low-Cost Circularly Polarized Millimeter-Wave Antenna Using 3D Additive Manufacturing

Tapered high-gain Fabry–Perot cavity antenna with high sidelobe suppression for 5G industry

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