A Miniaturized Yagi-Uda-Oriented Double-Ring Antenna With Circular Polarization and Directional Pattern

Sun, Sheng; Yang, Feng

doi:10.1109/lawp.2013.2274491

Cited by 30 publications

(18 citation statements)

References 14 publications

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“…The measured 3-dB axial-ratio (AR) bandwidths for [1] and [2] are 1.52% and 2.5%, respectively. Moreover, microstrip ring antennas have smaller dimension than microstrip patch antennas since their side length is about one quarter-wavelength and one half of the conventional patch antennas when they operate at fundamental mode [3][4][5]. In [3], a compact meandered microstrip ring antenna with four parasitic grounded patches and a slotted ground is reported, where a 3 dB AR bandwidth of 1.8% is obtained.…”

Section: Introductionmentioning

confidence: 99%

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A Compact Circularly Polarized Microstrip Ring Antenna Using a Slotted Ground for GNSS Applications

Yuan¹,

Li²

2020

PIER Letters

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A compact circularly polarized microstrip ring antenna is presented for Global Navigation Satellite systems (GNSS) application in this paper. The antenna consists of a ring-shaped slotted ground and a radiation patch which is fed by a T-like coupling feedline. The radiation patch is a square ring strip embedded within two inverted L-shaped strips and a rectangular strip. The overall size of the proposed antenna is 0.38 × 0.38 × 0.038λ 3 g (λ g is the guide wavelength at the frequency of 1575 MHz). The measured −15 dB |S 11 | bandwidth, 3 dB axial ratio (AR) bandwidth, and gain bandwidth of larger than 5 dBi are in the frequency range of 1552-1623 MHz, which can fully cover the operating frequency band of BDS B 1 , GPS L 1 , and GLONASS L 1 .

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Section: Introductionmentioning

confidence: 99%

“…In [7], a low-profile circularly polarized metasurface antenna is reported, and an impedance bandwidth of 17% and an AR bandwidth of 14.5% are achieved. However, though the antennas in [1][2][3][4][5][6][7][8] have small dimensions or better performances, they are hard to simultaneously satisfy small dimensions and better performances.…”

Section: Introductionmentioning

confidence: 99%

A Compact Circularly Polarized Microstrip Ring Antenna Using a Slotted Ground for GNSS Applications

Yuan¹,

Li²

2020

PIER Letters

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“…However, it increases the design complexity and cost of the antenna. Several BW enhancement techniques have been reported in [1][2][3][4][5][6][7][8][9][10][11][12][14][15][16]. The AR BW of a CP MSA can be increased by using a thick and low permittivity dielectric substrate.…”

Section: Introductionmentioning

confidence: 99%

“…A compact high gain 2 × 2 gap coupled array antenna is also designed. Low profile, printed wideband antennas are designed in [9][10][11][12]. A printed, high gain and wideband LP Yagi antenna, using tapered dipole as a driven element with tapered reflector, is reported in [9].…”

Section: Introductionmentioning

confidence: 99%

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Low Profile, High Gain and Wideband Circularly Polarized Antennas Using Hexagonal Shape Parasitic Patches

Jagtap¹,

Thakare²,

Gupta³

2019

PIER C

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This paper proposes low profile, high gain and wideband circularly polarized (CP) microstrip antennas (MSA), using gap coupled parasitic patches (PPs) on superstrate layer. Printed and suspended probe fed, CP MSAs are designed on a 1.59 mm thick FR4 substrate, and an array of closely spaced hexagonal PPs are printed on the bottom side of the 1.59 mm thick FR4 superstrate and placed at a height about λ 0 /8 above the ground plane, where λ 0 is the free space wavelength, corresponding to the central frequency of the operating frequency band. The gap coupled hexagonal PPs are not only used to enhance the axial ratio bandwidth (AR BW) and gain of the antenna, but also used to reduce impedance and gain variation of the antenna over the operating frequency band. 'Ant9' is a suspended MSA with 7 hexagonal PPs. A prototype 'Ant9' is fabricated and tested, which provides a peak gain of 9 dBi, S 11 < −10 dB, gain variation < 1 dB, and AR < 3 dB over 4.9 to 6.45 GHz frequency band. ARBW of 27.3% is achieved. The proposed 'Ant9' covers three frequency bands viz., 5.15 to 5.35 GHz, WLAN band, 5.725 to 5.875 GHz, ISM band, and 5.9 to 6.4 GHz, Satellite C band. The space fed antenna configuration reduces the cross polar radiation level (CPL) and increases the efficiency of the antenna. The measured results agree with the simulation ones. The overall size of 'Ant9' is 0.96λ 0 × 0.96λ 0 × 0.136λ 0 .

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Modeling and analysis of microstrip annular ring antenna with capacitive coupling matching network

Sun

Jiang

et al. 2020

Int J RF Microw Comput Aided Eng

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In this manuscript, microstrip annular ring antenna with capacitive coupling matching network is modeled and analyzed with equivalent circuit model and cavity model, which is simple and accurate for this structure. The proposed approach not only demonstrates physics lying behind the engineering design but also will be a good guideline for the microstrip annular ring antenna design. A prototype working UHF RFID band (902‐928 MHz) is designed. Overall dimension of the proposed antenna is about 0.5λ0 × 0.5λ0 × 0.055λ0, and the realized gain is larger than 5 dB with axial ratio is smaller than 3 dB. The measured results agree well with simulated counterparts except slightly frequency shift.

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A Miniaturized Yagi-Uda-Oriented Double-Ring Antenna With Circular Polarization and Directional Pattern

Cited by 30 publications

References 14 publications

A Compact Circularly Polarized Microstrip Ring Antenna Using a Slotted Ground for GNSS Applications

A Compact Circularly Polarized Microstrip Ring Antenna Using a Slotted Ground for GNSS Applications

Low Profile, High Gain and Wideband Circularly Polarized Antennas Using Hexagonal Shape Parasitic Patches

Modeling and analysis of microstrip annular ring antenna with capacitive coupling matching network

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