Design and Simulation Based Studies of a Dual-Band Circularly-Polarized Square Microstrip Antenna

Fujimoto, Takafumi; Yoshitake, Yuta; Yagyu, Daisuke

doi:10.2528/pierl15012101

Cited by 5 publications

(2 citation statements)

References 12 publications

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“…Therefore, to get ARBW in the entire range, the electric field needed to be perturbed with orthogonal phase difference and equal amplitude on that small region. Finally, Structure.5 was obtained by using two truncated (truncated etching isosceles right triangle area = 0.5 × rd1 × rd1 = 0.02 mm 2 = 6.35×10 −4 λ 2 g ) L-shaped slots [18,19]. Structure.5 gave two wide impedance bands, one linearly polarized band in lower frequency region and the other in higher frequency region containing two wide circularly polarized bands (IBW 5.88-6.48 GHz, 7.29-13.62 GHz and ARBW 7.24-10.87 GHz, 11.70-12.20 GHz).…”

Section: Antenna Design Proceduresmentioning

confidence: 99%

A Compact Dual Band Dual Polarized Monopole Antenna With Enhanced Bandwidth for C, X, and Ku Band Applications

Dhara¹

2021

PIER Letters

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This article presents a compact, single feed dual-band dual-polarized (DBDP) microstrip antenna. The proposed design involves an inverted Y-shaped radiating patch and a rectangular open-loop positioned near its right corner that creates mutual coupling to attain wideband circular polarization (CP). To achieve enhanced axial ratio bandwidth (ARBW), a semi-rectangular ground plane with two asymmetric truncated L-shaped slots has been used. An L-shaped slotted quarter wave microstrip line feed is used here for broader ARBW and proper impedance matching. The measured dual impedance bandwidths (IBW) in the range 5.85-6.52 GHz (centre resonance frequency f rc1 = 6.19 GHz, 10.66%) in lower frequency region and 7.25-13.64 GHz (f rc2 = 10.445 GHz, 61.18% bandwidth) in higher frequency region. The two ARBW bands span over 7.22-10.99 GHz (f c1 = 9.105 GHz, 41.41%) and 11.67 GHz-12.25 GHz (f c2 = 11.96 GHz, 4.85%). The measured peak gains between 3.20 and 4.96 dBi over the entire IBW range makes the LP and CP bands suitable for ITS (5.9 GHz), U-NII-5 of 6 GHz band, some C-band, ITU-8 GHz, some X-band, and Ku-band applications.

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Section: Antenna Design Proceduresmentioning

confidence: 99%

A Compact Dual Band Dual Polarized Monopole Antenna With Enhanced Bandwidth for C, X, and Ku Band Applications

Dhara¹

2021

PIER Letters

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“…The metallic patch can be square, rectangular, strip, circular, triangular, elliptical, or any combination of these shapes. Mostly, rectangular and circular shapes are used because they are the easiest in analysis and fabrication [10][11][12][13][14][15][16].…”

Section: Proposed Modelmentioning

confidence: 99%

Development of Microstrip Patch Antenna Design for GPS in Myanmar

Phyo¹,

Nway²,

Win³

et al. 2020

AJEA

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Polarization matching between the transmitter and receivers is an important thing due to the signal losses and multipath fading. In GPS application, L1 Band is commonly used to find the location all over the world. In this research, edgetruncated circularly polarized microstrip patch antenna and slot-loaded circularly polarized microstrip patch antenna are presented. The first design is diagonally fed with a single coaxial probe and the upper edges are truncated to reduce the patch size. This design provides the bandwidth of 79.5 MHz with the axial ratio bandwidth of 26 M Hz. In the second design, the slots are loaded to the patch in order to reduce patch size. The single coaxial diagonal feed is also applied to the patch. This design achieves the bandwidth of 56 MHz and the axial ratio bandwidth is about 22 M Hz. The second design can also provide the size reduction of 18.16%. However, the gain of the second antenna decreases to 3 dB due to its reduced size. As these simulated results, these two designs can be used in L1 Band GPS application. And then, these antenna designs are fabricated and measured the results such as return loss and axial ratio. The characteristics of these fabricated antennas are also applicable for the targeted application.

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