Coaxial probe‐fed open‐ended waveguide antenna based on sand casting process with filtering characteristics and all‐in‐one structure

Hu, Zhenxin; Wang, Shiyan; Tu, Hua; Liu, Yin; Yu, Yin-Hua; Wu, Duo‐Long

doi:10.1002/mmce.22494

Cited by 3 publications

(2 citation statements)

References 15 publications

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“…The filtenna achieved 1.6% bandwidth with 4.9 dBi gain @3.5 GHz and provided 43 and 25 dB port isolation and out of band rejection level, respectively. Furthermore, in 2020, Zhenxin Hu et al designed a waveguide filtering antenna, 37 which is a combined structure of a coaxial…”

Section: Siw Filtering Antennamentioning

confidence: 99%

Filtering antennas: A technical review

Gangwar¹,

Alam

Rajpoot³

et al. 2021

Int J RF Microw Comput Aided Eng

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Filtering antennas or filtennas realize both antennas and filter functions in a single structure with the sole purpose of reducing losses and size in the design of a radio system. This article presents a comprehensive view of various filtennas design techniques and their types, satisfying the requirements of different wireless communication standards. The codesign and synthesis approaches and multilayer structure, slot/slit, and parasitic elements are the frequently used techniques reported in the literature to date for the filtennas design. The codesign and synthesis approaches need an extra filter in the filtenna's design, thus making it more complex. Whereas multilayer, slot, and parasitic elements do not require additional filters, and help the radio design become compact in size. The individual elements, that is, filter and antenna used in the filtenna are designed by cutting slots, stacking, resonators, or metamaterial structures.There are two broad categories of filtennas, namely, planar and nonplanar. Most of the papers covered in this article are planar, whereas, under the non-

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Section: Siw Filtering Antennamentioning

confidence: 99%

Filtering antennas: A technical review

Gangwar¹,

Alam

Rajpoot³

et al. 2021

Int J RF Microw Comput Aided Eng

View full text Add to dashboard Cite

show abstract

“…Other impedance matching methods for a below-cutoff aperture include the use of a negative permeability material [39], an electromagnetic metamaterial [40][41][42][43], a radiator-filter combined structure [44][45][46][47]. Except for the radiator-filter combined structure, the input reflection coefficient is on the level of −10 dB, not −20 dB.…”

Section: Introductionmentioning

confidence: 99%

A New Technique for Broadband Matching of Open-Ended Rectangular Waveguide Radiator

Heo,

Xu,

Altanzaya

et al. 2023

Sensors

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The maximum reflection at an open end of a standard rectangular waveguide is about −10 dB in its operating frequency range. It is often used without matching. For critical applications, it is desirable to further reduce the reflection coefficient. In this paper, a new technique is presented for the broadband impedance matching of an open-ended rectangular waveguide. The proposed technique employs three thin capacitive matching elements placed at proper intervals via a low-loss dielectric material. The capacitance of, and distance between, the matching elements are optimized for broadband impedance matching using a simulation tool. Based on the proposed technique, two design examples are presented for the matching of a WR75 waveguide radiator. A reflection coefficient of less than −16 dB and −20 dB has been achieved over a ratio bandwidth of 2.13:1 and 1.62:1, respectively.

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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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Coaxial probe‐fed open‐ended waveguide antenna based on sand casting process with filtering characteristics and all‐in‐one structure

Cited by 3 publications

References 15 publications

Filtering antennas: A technical review

Filtering antennas: A technical review

A New Technique for Broadband Matching of Open-Ended Rectangular Waveguide Radiator

Compact Substrate Integrated Waveguide Filtering Antennas: A Review

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