Wideband SIW Filtering Antenna With Controllable Radiation Nulls Using Dual-Mode Cavities

Xie, Hanyu; Wu, Bian; Wang, Yuelin; Fan, Chi; Chen, Jianzhong; Su, Tao

doi:10.1109/lawp.2021.3097214

Cited by 33 publications

(23 citation statements)

References 19 publications

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“…Additionally, to etch the slot, some special structures can be added to the maximum electric field, reducing or increasing the resonant frequency to design the dual-mode cavity. In [82], the authors designed a dual-mode SIW cavity based on TE101 and TE201 modes. The designs achieved controllable RN located on the upper working band, and its topology is shown in Fig.…”

Section: B Multi-mode Siw Cavity Famentioning

confidence: 99%

Compact Substrate Integrated Waveguide Filtering Antennas: A Review

Sun

Feng

et al. 2022

IEEE Access

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In recent years, with the rapid development of integrated circuits, the filtering antenna (FA) circuit of the substrate integrated waveguide (SIW) has attracted widespread attention in wireless communications. Numerous structures have been proposed to improve the performance of SIW FA. Hence, this paper presents the development and miniaturization trend of the SIW FA, and briefly introduces the structure and historical development of the SIW FA. In terms of the mode, multi-mode cavities and incomplete mode cavities are constructed. Multi-layer structures, special structures and the slow-wave technology are constructed in physical structure. Several methods and design examples of the SIW FA miniaturization are introduced from these two aspects. Based on the combination of the filter and antenna, the FA remains the advantages of the SIW structure, mainly including small size, low insertion loss, high quality-factors, and easy integration in planar radio frequency components. Therefore, it can further reduce the circuit, allowing SIW FAs to be applied in many aspects such as the 5G (5th generation mobile communication technology) and wireless local area network communications.INDEX TERMS Substrate integrated waveguide (SIW), filtering antenna (FA), multi-mode, incomplete mode, multi-layer, slow-wave technology.

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Section: B Multi-mode Siw Cavity Famentioning

confidence: 99%

Compact Substrate Integrated Waveguide Filtering Antennas: A Review

Sun

Feng

et al. 2022

IEEE Access

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“…The slots are equally spaced from the center line for uniform power division. The slot offset gap is given by Equation (7) given in [12].…”

Section: Slots Array Designmentioning

confidence: 99%

“…The Filtering antennas with narrow band pass response are beneficial in 5G and millimeter wave systems [5]. Substrate integrated waveguide (SIW) technology has recently acquired critical importance in the design of filtering antennas [6][7][8]. Slotted SIW antennas feature unique properties such as high-directional beam formation as well as low level side lobes and cross-polarization.…”

Section: Introductionmentioning

confidence: 99%

Dual-Band Siw Slot Array Filtering Antenna for X and Ku Band Applications

Maruti¹,

Kishore²

2022

PIER Letters

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In this work, a substrate integrated waveguide slot array filtering antenna for dual band applications is presented. This novel design performs the functions of both a filter and an antenna simultaneously. The main intention of this work is to design a circuit that separates the frequencies in a dual band operation. The antenna is designed as an integration of two parts; the upper part operates at 10.2 GHz while the lower part operates at 16.4 GHz. In each part, an array of five longitudinal slots is incorporated, as well as a SIW antenna with complementary split ring resonators that operate as a band pass filter at the front end. Each slot array antenna is designed for a specific frequency band, and its function depends upon its preceding band pass filter. The two band pass filters allow only signals from the frequency bands for which they are designed to their corresponding slot array antennas. This technique, along with properly spaced metal vias of the SIW antenna, prevents any leakage and hence reduces interference in dual band operation. Both the band pass filter and the antenna can be built on the same planar board. The antenna is fed through a microstrip to SIW taper transition. CST Microwave Studio software is used for optimization and simulation of the structure. The antenna was built on an RT Duroid 5880 and tested to investigate practical validation. The antenna has a bandwidth of 1.9 GHz, from 9.2 GHz to 11.1 GHz in the X-band, and 2.2 GHz, from 15.6 GHz to 16.9 GHz in the Ku band. The gain pattern is unidirectional in nature and has low side lobe levels of −24 dB and −21 dB at resonant frequencies. A noticeable difference that is greater than 20 dB between co-polarization and cross-polarization is observed. The dimensions of the antenna are 56 mm × 32 mm × 0.508 mm. There is an excellent similarity between the simulated and measured results.

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“…An E‐shaped resonator integrated with two PIN diodes in Fakharian 8 was mainly to enhance the BW of the slot antenna. In Xie et al, 9 the use of a dual‐mode cavity resonator based on substrate‐integrated waveguides was not only to increase the BW of the filtering slot antenna but also to increase the selectivity of the frequency. A SIW cavity‐backed structure employed beneath a truncated patch was used to provide filtering functionality to the circularly polarized patch antenna 10 .…”

Section: Introductionmentioning

confidence: 99%

A filtering waveguide aperture antenna based on all‐resonator structures

Mahmud

Salih

Shang

et al. 2023

Micro & Optical Tech Letters

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In recent years, there has been a large amount of attention focused on the design of filtering antennas to reduce the front-end size of modern wireless communication systems. Although numerous design approaches are presented in the literature, they are usually applicable to a certain microwave circuit structure. Additionally, their implementations demand extra matching circuits or a structure which leads to an increase in the filtering antenna size. In this paper, the design of a 3rd-order filtering antenna operating at the X-band frequencies is presented utilizing the coupling matrix approach. It is based on 3rd order coupled-resonators filter without employing any extra structure. For the physical configuration, three inline coupled rectangular waveguide cavity resonators operating at TE 101 mode are employed. The output of the last resonator is coupled to free space via a rectangular aperture. The dimensions of the aperture are manipulated to control the radiation quality factor (Q r ). To validate the simulated results, the design has been fabricated using the Computer Numerical Control technique. Excellent agreement between the simulation and measurement results has been obtained. The fractional bandwidth (FBW) is more than 10% when the reflection coefficient S 11 = −20 dB. The gain response is very flat (7.54 ±0.2 dBi) from 9.5 to 10.5 GHz. The proposed filtering antenna is compact and low profile which may be of interest in radar applications.aperture antenna, coupling matrix theory, filtering antennas, waveguide cavity resonators | INTRODUCTIONRecently, integrations among the front-end components of wireless communication systems have become more popular, particularly among bandpass filters (BPFs) and antennas (so-called filtering antennas). [1][2][3][4] Such integration not only introduces filtering functionality to the antenna, but also reduces the losses and the front-end size of the system. 5 Numerous approaches have been presented in the literature to enhance the bandwidth (BW) of the filtering antennas so as to increase the data rate capability and reduce spurious signals.

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Wideband SIW Filtering Antenna With Controllable Radiation Nulls Using Dual-Mode Cavities

Cited by 33 publications

References 19 publications

Compact Substrate Integrated Waveguide Filtering Antennas: A Review

Compact Substrate Integrated Waveguide Filtering Antennas: A Review

Dual-Band Siw Slot Array Filtering Antenna for X and Ku Band Applications

A filtering waveguide aperture antenna based on all‐resonator structures

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