Compact and single‐feed circularly polarised microstrip antenna with wide beamwidth and axial‐ratio beamwidth

He, Shouyin; Deng, Jiahao

doi:10.1049/el.2017.1030

Cited by 20 publications

(14 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In recent years, circularly polarized (CP) antennas are widely used in wireless communication systems, such as radio-frequency identification, wireless local area network, and global positioning system [1]. The antenna with wide bandwidth, gain beamwidth, and 3 dB AR beamwidth has been demanded to meet the requirements of wireless communication systems [2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Design of a Wideband Circularly Polarized Cross-Dipole With Wide Axial-Ratio Beamwidth

Cao¹,

Zhang²,

Zhao³

et al. 2019

PIER Letters

View full text Add to dashboard Cite

A novel wideband circularly polarized (CP) cross-dipole with wide 3 dB axial-ratio (AR) beamwidth is presented. To generate CP radiation, the cross-dipole is fed by a Wilkinson power divider which can provide 90 • phase difference. The gain beamwidth and 3 dB AR beamwidth can be widened by the bent arm structures of cross-dipole and four vertical parasitic elements. As a result, the 3 dB AR beamwidth and gain beamwidth of the proposed antenna can achieve over 210 • and 105 • , respectively. It is observed that the impedance bandwidth (|S 11 | ≤ −10 dB) of the proposed antenna is 1.2 ∼ 2.0 GHz, and the AR bandwidth (AR ≤ 3 dB) is 1.28 ∼ 1.76 GHz. The simulated and measured results are in good agreement, which shows that the proposed antenna is a good candidate for the application of satellite communications.

show abstract

Section: Introductionmentioning

confidence: 99%

Design of a Wideband Circularly Polarized Cross-Dipole With Wide Axial-Ratio Beamwidth

Cao¹,

Zhang²,

Zhao³

et al. 2019

PIER Letters

View full text Add to dashboard Cite

show abstract

“…Generally, metal back cavity [3][4][5] or the similar structure of back cavities [6] is applied to enhance the HPBW of CP antennas. However, they suffer from high profile, and their complex in geometry may lead to fabrication difficulties.…”

Section: Introductionmentioning

confidence: 99%

“…Parasitic strips [8] are also proposed to achieve wide HPBW. Nevertheless, these technologies [3][4][5][6][7] are presented for single-band applications.…”

Section: Introductionmentioning

confidence: 99%

Beamwidth-Enhanced Low-Profile Dual-Band Circular Polarized Patch Antenna for CNSS Applications

Liu

Xun

Fang

et al. 2019

International Journal of Antennas and Propagation

View full text Add to dashboard Cite

A low-profile dual-band circular polarized (CP) patch antenna with wide half-power beamwidths (HPBWs) is presented for CNSS applications. Simple stacked circular patches are used to achieve dual-band radiation. To enhance the HPBW for the two operation bands, a dual annular parasitic metal strip (D-APMS) combined with reduced ground plane (R-GP) is presented. A single-input feed network based on the coupled line transdirectional (CL-TRD) coupler is also proposed to provide two orthogonal modes at the two frequency bands simultaneously. Experimental results show that the 10 dB impedance bandwidth is 32.7%. The 3 dB axial ratio (AR) bandwidths for the lower and upper bands are 4.1% and 6.5%, respectively. At 1.207 GHz, the antenna has the HPBW of 123° and 103° in the xoz and yoz planes, separately. And the values are 127° and 113° at 1.561 GHz.

show abstract

“…In [1][2][3][4], single-feed CP antennas have been discussed. The proposed single-feed antennas can achieve a 3-dB AR beamwidth of over 150 • .…”

Section: Introductionmentioning

confidence: 99%

A Broadband Crossed Dipole Antenna With Wide Axial Ratio Beamwidth for Satellite Communications

Feng¹,

Zhang²,

Sun³

2018

PIER Letters

View full text Add to dashboard Cite

Abstract-This letter presents a broadband circularly polarized (CP) crossed dipole antenna with wide axial ratio (AR) beamwidth. The antenna consists of a crossed dipole fed by two baluns, a wideband feed network and a cylindrical metallic cavity. To broaden the beamwidth, circular arms are introduced. Meanwhile, the metallic cavity is utilized to broaden the AR beamwidth. Measurements show that the antenna has an impedance bandwidth of 70.6% (1.87-3.91 GHz) for voltage standing wave ratio (VSWR) ≤ 2 and a 3-dB AR bandwidth of 62.4% (1.92-3.66 GHz). In addition, the 3-dB AR beamwidth of the antenna is larger than 100 • , and the gain varies from 4 dBic to 6 dBic over the whole CP operation bandwidth. Owing to the high-gain and wideband operation, the proposed CP antenna is potentially capable for satellite applications and high-gain applications.

show abstract

Compact and single‐feed circularly polarised microstrip antenna with wide beamwidth and axial‐ratio beamwidth

Cited by 20 publications

References 12 publications

Design of a Wideband Circularly Polarized Cross-Dipole With Wide Axial-Ratio Beamwidth

Design of a Wideband Circularly Polarized Cross-Dipole With Wide Axial-Ratio Beamwidth

Beamwidth-Enhanced Low-Profile Dual-Band Circular Polarized Patch Antenna for CNSS Applications

A Broadband Crossed Dipole Antenna With Wide Axial Ratio Beamwidth for Satellite Communications

Contact Info

Product

Resources

About