Characterization and Design of Wideband Penta- and Hepta-Resonance SIW Elliptical Cavity-Backed Slot Antennas

Xiang, Lei; Zhang, Yan; Yu, Yingrui; Wang, Hong

doi:10.1109/access.2020.3002433

Cited by 8 publications

(6 citation statements)

References 26 publications

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“…Thus, the variation of H field is studied in a circular cavity resonator with dominant mode of TM 010 mode. 20 The axial ratio plot, VSWR plot, fabricated prototype of antenna and its measurement set up is shown in Figure 5. Table 1 shows a comparison of proposed work done with similar literature work.…”

Section: Refmentioning

confidence: 99%

A compact quad‐band circular cavity backed substrate integrated waveguide antenna for millimeter wave applications

Tewari

Joshi

Srivastava

2023

Micro & Optical Tech Letters

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In this letter, a compact circular cavity‐backed, circularly polarized substrate integrated waveguide (SIW) multiband antenna is proposed. In the outer circular cavity, an array of two periodic metal slots, tilted at an angle, resonate at 25.32, 26.44, and 28.83 GHz, and the inner circular cavity's periodic slots radiate at 28.01 GHz. Two concentric SIW cavities are structured in such a distinct manner that no loss due to leakage takes place thus, achieving a maximum isolation of −43.8 dB at 28.83 GHz. The miniaturized antenna has dimensions of 2.2λo × 2.2λo × 0.1λo where λo is the operating wavelength. It achieves a maximum gain of 9.1 dBi at 26.44 GHz, and VSWR < 2 is achieved at all frequency bands. The antenna is circularly polarized at 26.44 and 28.01 GHz as well. The design results are plotted in the Ansys high‐frequency structure simulator version EM19.2 tool. The proposed antenna is fabricated and tested using an Anritsu Vector Network Analyzer version v4.0 with an anechoic chamber setup.

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Section: Refmentioning

confidence: 99%

A compact quad‐band circular cavity backed substrate integrated waveguide antenna for millimeter wave applications

Tewari

Joshi

Srivastava

2023

Micro & Optical Tech Letters

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“…owing to its high quality, and its structure is associated with only a single resonant frequency [4]. Various techniques have been employed to improve the impedance bandwidth through slot substrate removal [5], slot radiator modification [6], [7], [8], [9], shorting vias [10], [11], [12], [13], and dual-mode SIW with pin loading [14].…”

Section: Introductionmentioning

confidence: 99%

“…A pair of shorting vias was used to combine the lower cavity mode with the higher modes [11] and 17.5% of impedance bandwidth has developed. Another method of combining a pair of shorting vias with a cross-shaped slot can be used to improve the impedance bandwidth by generating multi resonant frequencies [12], [13]. Multi resonant frequencies consist of evenand odd-high-order modes.…”

Section: Introductionmentioning

confidence: 99%

“…Multi resonant frequencies consist of evenand odd-high-order modes. Multi resonant frequencies, that is, triple- [11], [11], [12], penta- [12], [13], and hepta- [13] resonant frequencies, successfully yielded improvements in the impedance bandwidth. Hepta-resonant frequencies in an elliptical cavity improve impedance bandwidth by up to 22.7% [13].…”

Section: Introductionmentioning

confidence: 99%

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Hybrid HMSIW Cavities Antenna With a Half-Pentagon Ring Slot for Bandwidth Enhancement

Astuti

Wahyu²,

Zulkifli

et al. 2023

IEEE Access

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A substrate-integrated waveguide (SIW) antenna is an implementation of a waveguide antenna in a microstrip antenna. The microstrip antenna, as a low-profile antenna, suffers from narrow impedance bandwidth. This paper proposes a novel bandwidth enhancement method for solving a narrow impedance bandwidth. Bandwidth enhancement was achieved by using quad-resonant frequencies. The quad-resonant frequencies are resulted from the hybrid half-mode substrate-integrated waveguide (HMSIW) cavities between the inner and outer cavities. The inner HMSIW cavity has a half-pentagon ring slot that disturbs the TE 101−inner , TE 102−inner , TE 202−inner , and TE 103−inner modes, whereas the outer HMSIW cavity consists of two outer quarter-mode substrate-integrated waveguide (QMSIW) cavities. The outer HMSIW cavity generated the TE 102−outer and TE 202−outer modes. The hybrid cavities were fed simultaneously using a port with a quarter-wavelength feed transmission line. The hybrid HMSIW cavities generated resonant frequencies that were close to each other. Additionally, this method was applied to the X-band frequency with a low-profile substrate. The simulated impedance bandwidth and peak realized gain was 33.86% (8.98 − 12.64 GHz) and 7.97 dBi, while the measured impedance bandwidth and peak gain were 31.83% (9.14 -12.6 GHz) and 7.62 dBi, respectively. Strong agreement was observed between the measurement and simulation results.INDEX TERMS Bandwidth enhancement, hybrid cavities, quad-resonant, a half-pentagon ring slot, halfmode substrate-integrated waveguide antenna.

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“…Microstrip antennas are easily fabricated compared to other materials [7]. In addition, multifrequency-microstrip antennas provide simpler dimensions compared to single-frequency antennas.…”

Section: Introductionmentioning

confidence: 99%

Antena Mikrostrip dengan Dua Buah U-Slot untuk Aplikasi Wi-Fi dan 5G

Astuti

Patrakomala²,

Muslim³

et al. 2022

JNTETI

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Sekarang ini perkembangan telekomunikasi pada jaringan nirkabel berkembang dengan sangat cepat. Perkembangan telekomunikasi yang cepat tersebut disebabkan oleh kebutuhan manusia terhadap informasi secara cepat dan dapat diakses di mana saja. Salah satu perangkat pada sistem telekomunikasi jaringan nirkabel adalah antena. Kebutuhan antena yang dapat bekerja pada beberapa frekuensi jaringan nirkabel sangat diperlukan pada perangkat sistem telekomunikasi. Oleh karena itu, penelitian ini mengusulkan rancangan sebuah antena mikrostrip yang dapat bekerja pada dua buah frekuensi jaringan nirkabel secara bersamaan, yaitu Wi-Fi dan telekomunikasi seluler generasi kelima (5G). Antena mikrostrip dirancang dengan menggunakan dua buah slot, yaitu satu slot berbentuk cincin persegi terputus dan satu slot lagi berbentuk huruf U terbalik. Adapun frekuensi Wi-Fi dan 5G yang bekerja pada antena ini adalah 2,45 GHz dan 3,3 GHz. Frekuensi resonansi pada antena mikrostrip ini dipengaruhi oleh panjang slot. Antena dirancang dan difabrikasi menggunakan substrat Rogers 5880 yang memiliki permitivitas relatif bahan (er) 2,2, loss tangen (d) 0,0009, dan ketebalan 1,575 mm. Namun, sebelum difabrikasi, terlebih dahulu rancangan antena disimulasikan menggunakan simulator Ansys HFSS. Simulator Ansys HFSS merupakan simulator untuk mendesain komponen yang menggunakan gelombang elektromagnetik, di antaranya antena. Hasil pengukuran koefisien refleksi pada desain antena ini memperlihatkan hasil yang sangat bagus untuk kedua buah frekuensi tersebut, jika dibandingkan dengan hasil simulasi. Pada hasil simulasi, koefisien refleksi memberikan lebar pita sebesar 123 MHz pada rentang frekuensi 2.412–2.535 MHz, sedangkan hasil pengukuran memberikan nilai lebar pita sebesar 153 MHz di rentang frekuensi 2.402-2.555 MHz untuk penerapan frekuensi Wi-Fi. Pada frekuensi 5G, diperoleh lebar pita pengukuran sebesar 87 MHz, pada rentang 3.260-3.347 MHz. Hasil pengukuran tersebut sesuai dengan hasil simulasi, yang memperoleh lebar pita 88 MHz pada rentang 3.248–3.336 MHz. Oleh karena itu, dapat disimpulkan bahwa fabrikasi dari desain antena ini dapat dipakai untuk kedua aplikasi tersebut.

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Characterization and Design of Wideband Penta- and Hepta-Resonance SIW Elliptical Cavity-Backed Slot Antennas

Cited by 8 publications

References 26 publications

A compact quad‐band circular cavity backed substrate integrated waveguide antenna for millimeter wave applications

A compact quad‐band circular cavity backed substrate integrated waveguide antenna for millimeter wave applications

Hybrid HMSIW Cavities Antenna With a Half-Pentagon Ring Slot for Bandwidth Enhancement

Antena Mikrostrip dengan Dua Buah U-Slot untuk Aplikasi Wi-Fi dan 5G

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