A Tri-Band Circularly Polarized G- Shaped Patch Antenna for Wireless Communication Application

Dhara, Reshmi; Sarkar, Madhurima; Dey, Tarun Kumar; Jana, Sanjay Kumar

doi:10.1109/gucon.2018.8675023

Cited by 5 publications

(3 citation statements)

References 14 publications

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“…Dhara ve arkadaşları CPW (Co-planar Waveguide-Eş düzlemsel dalga kılavuzu) toprak beslemeli G şeklinde tasarladıkları yama antende band genişliğini iyileştirdiklerinden bahsetmişlerdir [10].…”

Section: Literatür çAlışmalarıunclassified

Ism 2450mhz Ci̇varinda Dai̇resel Mi̇kroşeri̇t Antenlerde Eş Düzlemsel Çerçeve Yapinin Yansima Katsayisi, en Büyük Kazanç, Bant Geni̇şli̇ği̇ Ve Hüzme Geni̇şli̇ği̇ Üzerine Etki̇si̇

Armağan,

Kahriman

2023

YADE

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ÖZET Bu çalışmada ISM bandı 2,45GHz çalışma frekanslı mikroşerit dairesel yama anten tasarımı yapılmış ve antenin S11 yansıma katsayısı ile PHI ve THETA açılarındaki maksimum anten kazancı belirlenmiş, Bant genişliği ve HPBW değerleri hesaplanmıştır. Daha sonra bu dairesel yama etrafına eş düzlemsel yapı yerleştirilerek farklı eş düzlemsel yapı genişlikleri için değerler tekrar elde edilmiş ve bu yapının PHI ve THETA açılarındaki maksimum Anten Kazancı ve HPBW değerlerine etkisi karşılaştırılmıştır. Bu işlemler için Ansoft HFSS simulasyon programı kullanılmıştır. Buna göre 110x112mm boyutundaki eş düzlemsel yapı bulunmayan mikroşerit dairesel yama anten için s11=-14,83dB, En Büyük Kazanç değeri -0,31dB iken Bant Genişliği 41,90MHz, HPBW değeri de 63⁰ elde edilmiştir. Antene boyutları değiştirilmeden eş düzlemsel yapı eklenerek bu değerler tekrar elde edildiğinde s11=-15,6dB, En Büyük Kazanç değeri 0,3034dB, Bant Genişliği 42,90MHz, HPBW değerleri de 64⁰ elde edilmiştir. Bu değerlerden de anlaşılacağı gibi eş düzlemsel yapı eklenmesinin anten parametrelerinden En Büyük Kazanç ve Bant Genişliğinde büyüme, s11 yansıma katsayısında küçülme şeklinde olumlu etkiler oluşturduğu ve benzer olumlu etkinin farklı anten boyutlarında da oluştuğu gözlenmiştir.

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Section: Literatür çAlışmalarıunclassified

Ism 2450mhz Ci̇varinda Dai̇resel Mi̇kroşeri̇t Antenlerde Eş Düzlemsel Çerçeve Yapinin Yansima Katsayisi, en Büyük Kazanç, Bant Geni̇şli̇ği̇ Ve Hüzme Geni̇şli̇ği̇ Üzerine Etki̇si̇

Armağan,

Kahriman

2023

YADE

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“…They are also very popular for simple process of integrating with solid state active devices or MMICs. 2,20 Consequently, we planned to design a CPW-fed CP annular ring antenna. We started with basic Antenna 1 layout made Figure 4.…”

Section: Antenna Design Proceduresmentioning

confidence: 99%

A triple‐band circularly polarized annular ring antenna with asymmetric ground plane for wireless applications

Dhara

Mitra

2020

Engineering Reports

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Herein a compact triple-band circularly polarized (CP) microstrip patch antenna, loaded with a single annular ring patch with eight symmetrical slots along its periphery and a series of octagonal closed ring resonators (CRRs) on the opposite side of the substrate, is proposed. Evolution process of the antenna geometry reveals that the eight symmetrical slots and the CRRs are responsible for increased impedance bandwidth (IBW), while simulated (high-frequency structure simulator (HFSS) and computer simulation tool) triple CP bands obtained due to the uses of crossshaped slit resonating at 7.5 GHz (152.2 MHz); asymmetric ground plane at 10.2 GHz (161 MHz); and square open-loop at 12.2 GHz (112.5 MHz). Series of parasitic strips improved CP radiation and remove ripple in the radiation pattern. The antenna presented here, is compact, fabricated with an optimized dimension of 35 × 30 × 1.6 mm 3 , on low cost FR-4 substrate with copper cladding. The measured <10-dB IBW ranges from 4.08-5.05 GHz and 5.98 GHz up to 13.6 GHz. Simulated maximum peak gain found to be 4.45 dBi at 13 GHz. The antenna proposed herein is appropriate for wireless applications. K E Y W O R D S asymmetric ground, circular polarization, closed ring resonators, CPW-fed, parasitic strip 1This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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“…To deliver CP bands, two orthogonal degenerates' modes of same amplitude but having a 90 • phase differentiation need to be generated. 6,7 Earlier, development of miniaturized antennas were most often accompanied with bandwidth diminution (either impedance bandwidth [IBW], 3 dB ARBW or both). Printed slot antennas are widely used to design CP antennas, [8][9][10][11][12][13] but achieving adequate CP bandwidth remains a major challenge in them.…”

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confidence: 99%

A compact inverted Y‐shaped circularly polarized wideband monopole antenna with open loop

Dhara

Kundu

2020

Engineering Reports

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This article presents a novel, compact, single feed circularly polarized (CP) microstrip antenna. Proposed design involve an inverted Y-shaped radiating patch fed by an L-shaped microstrip line feed and a rectangular open-loop placed near its right corner. A semi-rectangular ground plane is used on the opposite side of the substrate. Coupling between the rectangular open-loop and the inverted Y-shaped patch plays a vital role in attaining wideband CP, while the semi-rectangular ground plane is crucial for enhancing impedance bandwidth (IBW). The optimized design achieved measured wide IBW of 5.164 GHz (65.53%, spanning over 5.297-10.461 GHz) having its center frequency (f rc ) at 7.878 GHz. The corresponding measured axial ratio bandwidth (ARBW) obtained inside the measured IBW curve is 2.25 GHz (having its center CP resonating frequency f cp 7.52 GHz, spanning over 6.40-8.65 GHz, 29.92%). Measurement results are validated in both Ansys Electronics Desktop 2020 R1 and CST Microwave Studio 2018. Proposed antenna is fabricated on FR-4 epoxy substrate of 1.6 mm thickness and exhibits a very small footprint of just 400 mm 2 (20 × 20 mm 2 ) (size 0.58λ mgL × 0.58λ mgL × 0.046λ mgL , where λ mgL is the measured guided wavelength at lower resonating frequency f mrL = 5.297 GHz) with 51.31% reduction in size. Measured maximum peak gain for the impedance band is 2.04 dBi at 8.8 GHz and 1.96 dBi at f cp 7.52 GHz. The structure of the proposed antenna is extremely simple, quite small in size and its CP bands can be suitable for some C-band and ITU (International Telecommunication Union)-8 GHz application. K E Y W O R D Saxial ratio bandwidth, circular polarization, impedance bandwidth, ITU (8 GHz) band INTRODUCTIONIn recent times, demand for small Form Factor strategies used in wireless systems, is leading to design of many novel, compact, low-cost, broadband microstrip antennas. 1 Circular polarization has become one of the most sought after methods of polarization due to its considerable insulation to multipath interferences, sturdiness to polarization mismatchesThis is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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A Tri-Band Circularly Polarized G- Shaped Patch Antenna for Wireless Communication Application

Cited by 5 publications

References 14 publications

Ism 2450mhz Ci̇varinda Dai̇resel Mi̇kroşeri̇t Antenlerde Eş Düzlemsel Çerçeve Yapinin Yansima Katsayisi, en Büyük Kazanç, Bant Geni̇şli̇ği̇ Ve Hüzme Geni̇şli̇ği̇ Üzerine Etki̇si̇

Ism 2450mhz Ci̇varinda Dai̇resel Mi̇kroşeri̇t Antenlerde Eş Düzlemsel Çerçeve Yapinin Yansima Katsayisi, en Büyük Kazanç, Bant Geni̇şli̇ği̇ Ve Hüzme Geni̇şli̇ği̇ Üzerine Etki̇si̇

A triple‐band circularly polarized annular ring antenna with asymmetric ground plane for wireless applications

A compact inverted Y‐shaped circularly polarized wideband monopole antenna with open loop

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