A broadband wide beamwidth circulary polarized microstrip patch antenna with conformal radome for high-speed airborne communication

Singh, Sumit; Kumar, Ajay; Singh, Vivek; Sagar,

doi:10.1109/iespc.2017.8071883

Cited by 9 publications

(3 citation statements)

References 4 publications

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“…Each antenna has its own unique characteristics, and the proposed antenna has the widest HPBW compared to that in [11][12][13][14][15][16][17][18]. Also, the 10 dB impedance bandwidth is wider than that in [12,[14][15][16][17], and the 3 dB AR bandwidth is wider than that in [12,15,17]. The antenna has a simple structure and is more suitable for working in the Kuband or higher than other forms.…”

Section: Measured Results and Discussionmentioning

confidence: 98%

“…Currently, many technologies have been reported to realise wide HPBW and wide 3 dB AR beamwidth, such as adopting a multidipole with cavity-backed [14], four unequal circular patches are integrated onto corners of a square radiation patch [15], a wall-shaped raised ground structure [16], a two diagonal metal walls [17], a stubs-integrated microstrip antenna [18], and hybrid perturbation introduced into stack-square ring microstrip antenna [19]. In [20], the antenna achieves a beamwidth of 130° in 1575 MHz GPS band by employing a pyramidal ground structure and a partially enclosed flat conducting wall.…”

Section: Introductionmentioning

confidence: 99%

“…Various characteristics of antennas in[14][15][16][17][18][19][20][21][22][23] compared with the proposed one Ref.…”

mentioning

confidence: 99%

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Single‐feed microstrip antenna for wide angle circular polarisation with six metal columns

Zhao

Sun

et al. 2019

IET Microwaves, Antennas & Propagation

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A circularly polarised microstrip antenna with a wide beamwidth and wide axial ratio (AR) beamwidth is presented. The antenna is mainly composed of a dielectric substrate, a single‐feed patch, a reduced ground, and six metal columns. The reduced ground and six metal columns are primarily used to broaden the radiation beamwidth and improve the AR performance of the wide angle. According to the measured results, the antenna achieves a bandwidth of 3.78% from 7.78 to 8.08 GHz with an AR <3 dB, and an impedance bandwidth of 10.3% from 7.65 to 8.43 GHz with a return loss (RL) >10 dB. In addition, half‐power beamwidth of 211° × 209° and 3 dB AR beamwidth of 222° × 239° at 8.0 GHz are observed. The antenna is a single‐feed type with a simple structure and no additional feed network, which can be extended to some wide beamwidth and wide AR beamwidth applications in the X‐band, even higher than the Ku‐band.

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Section: Measured Results and Discussionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Single‐feed microstrip antenna for wide angle circular polarisation with six metal columns

Zhao

Sun

et al. 2019

IET Microwaves, Antennas & Propagation

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Design Analysis of Broadband Stacked Microstrip Patch Antenna for WLAN Applications

Kumar

Gupta²,

Gautam

2018

Wireless Pers Commun

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3-D-Printed Dielectric Lens With Cone-Shaped Cavity for Axial Ratio Beamwidth Enhancement of Circularly Polarized Patch Antenna

Fang

Wang

et al. 2019

IEEE Access

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A 3-D-printed dielectric lens is proposed in this paper to widen the 3-dB axial-ratio beamwidth (ARBW) of conventional circularly polarized (CP) patch antenna. The proposed lens is constructed by a solid dielectric cylinder with a cone-shaped air cavity. To illustrate the working principle, the geometric optics method is introduced, then refractions of the CP wave caused by the lens are theoretically analyzed and the related equations of axial ratio (AR) are derived. Besides, the key parameters that affect the ARBW of the CP antenna are adequately investigated, and the general rules are summarized to design it conveniently. To provide two orthogonal modes at center frequency, a dual-feed network is used to drive the patch antenna. To demonstrate, prototypes with and without lens are designed, fabricated, and measured. The experimental results show a good agreement with the simulated ones in terms of returned loss, radiation pattern, gain, and AR. The measured 15-dB impedance bandwidth is 20.4%, the 3-dB AR bandwidth is 17.5%, and the peak gain at main radiated direction is 5.5 dBic. Furthermore, the compared results in measurements show that by using the proposed lens, the 3-dB ARBW of CP antenna can be extended effectively from 82 • to 162 • , which is highly demanded in global navigation satellite system for reducing multipath interference. Finally, the applicability of the proposed lens is discussed including the available frequency bandwidth, the size of ground plane, and the feasibility for other types of CP patch antennas. INDEX TERMSCircularly polarized (CP) patch antenna, dielectric lens, wide axial-ratio beamwidth (ARBW).

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A broadband wide beamwidth circulary polarized microstrip patch antenna with conformal radome for high-speed airborne communication

Cited by 9 publications

References 4 publications

Single‐feed microstrip antenna for wide angle circular polarisation with six metal columns

Single‐feed microstrip antenna for wide angle circular polarisation with six metal columns

Design Analysis of Broadband Stacked Microstrip Patch Antenna for WLAN Applications

3-D-Printed Dielectric Lens With Cone-Shaped Cavity for Axial Ratio Beamwidth Enhancement of Circularly Polarized Patch Antenna

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