Miniaturized Dual-Band Circularly Polarized Quadruple Inverted-F Antenna for GPS Applications

Wang, Meng-Shuang; Zhu, Xiaoqi; Guo, Yong‐Xin; Wu, Wen

doi:10.1109/lawp.2018.2834484

Cited by 20 publications

(9 citation statements)

References 14 publications

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“…A serial feedline was used to excite a diamond‐shaped slot in 15 . The sequential rotation technique consists of sequentially rotating each element while imposing a 90° offset in the feed excitation phase 16,17 . Broadband CP antennas using a dual‐feed network were The sequential phase feed technique is one of the most effective and popular approaches for CP antennas.…”

Section: Introductionmentioning

confidence: 99%

“…15 The sequential rotation technique consists of sequentially rotating each element while imposing a 90 offset in the feed excitation phase. 16,17 Broadband CP antennas using a dual-feed network were The sequential phase feed technique is one of the most effective and popular approaches for CP antennas. In this approach, sequential and stable phase differences are generated at the ports of the feedline, which results in CP characteristics.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Novel dual‐band circularly polarized slot antenna with asymmetrical stubs

Sung

2020

Micro & Optical Tech Letters

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In this paper, we propose a slot antenna with circularly polarized (CP) characteristics in two frequency bands. The proposed antenna consists of a square wide slot with a square patch in the center and a pair of stubs for radiator asymmetry. The proposed antenna shows right-hand CP characteristics at 1.88 GHz and left-hand CP characteristics at 4.41 GHz. The proposed antenna has measured impedance bandwidths of 24.3% (1.77-2.26 GHz) and 33.4% (3.84-5.38 GHz) in the lower and upper bands, respectively. The measured 3-dB axial-ratio bandwidths are 4.4% (1.78-1.86 GHz) and 7.9% (4.25-4.6 GHz), respectively. Details of the design considerations of the proposed antenna are described and experimental results for its dualband CP performance are presented and discussed.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Novel dual‐band circularly polarized slot antenna with asymmetrical stubs

Sung

2020

Micro & Optical Tech Letters

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“…Several effective approaches have been developed to achieve compact size for GPS/BDS antennas in the past two decades [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27]. Existing compact BDS/GPS antennas include ceramic patches [1,2,3,4], shorting probe loading antennas [5,6], slot-loaded patch and quadruple inverted-F antenna (QIFA) [7,8,9], leading to antennas as small as 0 =9. Nevertheless, due to the insufficient mechanical strength and stiffness, the aforementioned designs are not quite suitable for high-shock projectile applications.…”

Section: Introductionmentioning

confidence: 99%

Design of compact active BeiDou antenna for high-shock projectile applications

Chen

Xiao

et al. 2019

IEICE Electron. Express

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A novel compact active BeiDou helical antenna, operating at normal mode is proposed for high-shock projectile applications. To achieve excellent impedance matching, a grounded matching stub is introduced in this design. For demonstration, a prototype with extremely compact size (22 × 22 mm) is fabricated and measured. The measured reflection coefficients below 10-dB is almost 15 MHz centered at 1268 MHz. Omni-directional radiation pattern of the proposed antenna is realized. Additionally, stable signal reception under various motion attitudes could also be proved by experiments.

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“…A few circularly polarized antenna designs have been reported [22][23][24][25][26] for GPS applications on planar surfaces, but according to [27], in the multipath environment, the linear polarized signal is less vulnerable to distortions compared to the circularly polarized signal. Thus, omnidirectional linearly polarized antennas can also be used for receiving purposes.…”

Section: Introductionmentioning

confidence: 99%

Bow-tie-shaped wideband conformal antenna with wide-slot for GPS application

Sahoo¹,

Vakula²

2019

Turk J Elec Eng & Comp Sci

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In this article, a novel wideband cylindrical conformal antenna using a wide slot in the ground plane is proposed. A bow-tie-shaped patch antenna is designed for Global Positioning System applications. The bandwidth of the antenna is improved by using a similar bow-tie-shaped slot in the ground plane with a larger dimension. The bandwidth is further enhanced by introducing a dumbbell-shaped slit in the patch. The antenna is fed by a 50-Ω microstrip line. The proposed planar antenna is printed on a ground plane of size 0.5 λ mm × 0.5 λ mm, where λ is the operating wavelength, and then it is transformed into a cylindrical conformal antenna with the desired radius of curvature. The proposed planar antenna is simulated, fabricated, and measured for conformal geometry with good agreement between measurements and simulation results. It is observed that the conformal antenna exhibits a fractional bandwidth of 81.4 % operating from 0.75 to 1.78 GHz, which is useful for all GPS and Galileo frequencies. The radiation pattern exhibits an omnidirectional pattern and gain of the proposed antenna is 3.5 to 4.78 dBi within the operating frequency range.

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Miniaturized Dual-Band Circularly Polarized Quadruple Inverted-F Antenna for GPS Applications

Cited by 20 publications

References 14 publications

Novel dual‐band circularly polarized slot antenna with asymmetrical stubs

Novel dual‐band circularly polarized slot antenna with asymmetrical stubs

Design of compact active BeiDou antenna for high-shock projectile applications

Bow-tie-shaped wideband conformal antenna with wide-slot for GPS application

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