Circularly-polarized linear antenna array of non-identical radiating patch elements for WiFi/WLAN applications

Chung, Kwok L.; Yan, Xiaoqing; Cui, Aiqi; Li, Yingsong

doi:10.1016/j.aeue.2020.153526

Cited by 30 publications

(5 citation statements)

References 36 publications

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“…Dual-band circularly polarized pattern recon guration antenna was developed using PIN diodes, achieving a 180 0 beam direction switching capability through the implementation of a PIN diode [6]. 3-dB axial ratio bandwidth from 2.28 GHz to 2.59 GHz (12.7%) was obtained by Kwok L. Chung et al with a high gain circularly polarized array antenna using one-to-tree power splitter of unequal phase and amplitude, while an overall e ciency of 82% and a broadside gain of 9 dB at 2.5 GHz were noted within the bandwidth [7]. The dual-mode focusing metasurface was used to demonstrate a circularly polarized high gain antenna [8], however, this suggests that the antenna design is more complicated than a typical one.…”

Section: Introductionmentioning

confidence: 99%

Performance Enhancement of Circularly Polarized Microstrip Antenna Using Single-Layer Foam Substrate for 5.8 GHz ISM Band Applications

Hake,

Jaiswal,

Moon

2024

Preprint

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Since last decade microstrip patch antenna has played a very important role in industrial, scientific, and medical (ISM) band applications, but single-layer antennae suffer from low gain, low radiation efficiency. For an ISM band, there is always a trade-off between these parameters, so maintaining it on a single-layer microstrip antenna is a big challenge. Hence this paper designs a circularly polarized (CP) microstrip antenna using a single-layer Foam Substrate for 5.8 GHz ISM band which offers high gain, improved radiation efficiency, and a lightweight design. It is constructed as a low-profile, single coaxial feed microstrip antenna on a foam substrate, achieving circular polarization by integrating two slots into the radiating patch antenna has dimensions of 0.98 λ0 × 0.98 λ0 × 0.096 λ0, impedance bandwidth of 600 MHz (5.56–6.16) GHz, which underscores its adaptability across a wide range of frequencies within the specified band. Furthermore, it elaborates the axial ratio bandwidth which extends over 130 MHz (5.77–5.90) GHz, showing the antenna's ability to maintain circular polarization characteristics over a significant frequency range with a gain of 8.87 dB. The experimental and simulation results confirmed a remarkable radiation efficiency of 95.62%, showing its superior effectiveness compared to any existing single-layer microstrip antenna.

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Section: Introductionmentioning

confidence: 99%

Performance Enhancement of Circularly Polarized Microstrip Antenna Using Single-Layer Foam Substrate for 5.8 GHz ISM Band Applications

Hake,

Jaiswal,

Moon

2024

Preprint

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“…Circularly polarized (CP) antennas have been widely used in recent years due to their stable signal transmission and reception characteristics in bad weather,polarization rotation and flexible directionality between transmitter and receiver [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. For satellite and global positioning system (GPS) applications, to improve the accuracy and flexibility of GPS systems, there is a high demand to get thin, lightweight and high gain CP antennas [5,20,21].…”

Section: Introductionmentioning

confidence: 99%

A Simple Single-fed Left/Right-Hand Circular Polarization Antenna for GPS Applications

Meng

Huang

2023

ACES Journal

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A simple single-feeding circular polarization (CP) antenna with controlled left/right-hand characteristics is proposed and investigated for GPS L2 band applications. To achieve the CP characteristics, four arc-shaped cutting corners with different sizes are removed from a circular patch to give 90∘ phase difference to implement CP. By adjusting the radius of the four arc-shaped cutting corners, the antenna can be controlled to get left/right-hand circular polarization (L/RHCP). The proposed CP antenna is modeled, simulated, fabricated and measured, and the results demonstrate that the antenna provides an axial ratio beamwidth over 180 MHz, and impedance bandwidth of 20 MHz for L/RHCP. Additionally, the devised CP antennas have good directional radiating patterns, making them suitable for GPS L2 band applications.

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“…Multi-fed is command method to expand the AR bandwidth [24][25][26][27][28][29][30][31][32][33]. In [24], the single circular patch excited by dual capacitively coupled feeds with 90 • phase shift features a wide AR bandwidth of 35%.…”

Section: Introductionmentioning

confidence: 99%

Wideband Single-Fed Circularly Polarized Stacked Patch Antenna With L-Shaped Stub

Xue

et al. 2023

ACES Journal

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A wideband single-fed circularly polarized (CP) stacked patch antenna with an L-shaped stub is presented. The CP antenna is made up of the bottom gradient microstrip transmission line, middle driven patch and top square radiation patch. The driven patch with an L-shaped stub and opening slot can achieve a wideband CP radiation which is different from a conventional patch. The presented CP stacked patch antenna maintains good directional radiation, while featuring wideband CP radiation. The final tested results indicate that the presented CP antenna has significant performance with a −10 -dB impedance bandwidth of 42.1% (4.26-6.53 GHz), a 3-dB AR bandwidth of 26.0% (4.36-5.66 GHz) and broadside peak gain of 8.6 dBic. Moreover, the fifth-generation (5G) N79 band (4.4-5.0 GHz) and 5G wireless local area network (WLAN) band (5.15-5.35 GHz) can be covered by the operating bandwidth of the presented CPantenna.

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Circularly-polarized linear antenna array of non-identical radiating patch elements for WiFi/WLAN applications

Cited by 30 publications

References 36 publications

Performance Enhancement of Circularly Polarized Microstrip Antenna Using Single-Layer Foam Substrate for 5.8 GHz ISM Band Applications

Performance Enhancement of Circularly Polarized Microstrip Antenna Using Single-Layer Foam Substrate for 5.8 GHz ISM Band Applications

A Simple Single-fed Left/Right-Hand Circular Polarization Antenna for GPS Applications

Wideband Single-Fed Circularly Polarized Stacked Patch Antenna With L-Shaped Stub

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