Quasi-Reflectionless Tunable Filtering Antenna for Multicarrier Transceiver

Liang, Tian; Dong, Yuandan; Wang, Zhan; Chen, Xiong; Wang, Hailong

doi:10.1109/lawp.2021.3070806

Cited by 16 publications

(2 citation statements)

References 30 publications

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“…Various types of filtennas, especially mmWave filtennas, have been reported, 10–30 which were implemented with frequency‐selective surface cover (or radome), substrate integrated waveguide (SIW) cavities, dielectric resonators, impedance stepped resonators, and so forth. In Hu et al, 13 a traveling‐wave antenna with diverse split‐ring resonators (SRRs) is proposed and broad‐coupled complementary SRR is used to improve the high‐frequency stopband characteristic.…”

Section: Introductionmentioning

confidence: 99%

Millimeter‐wave filtenna for 5G application with multiple controllable radiation nulls and wide stopband

Li,

Zhu,

et al. 2023

Micro & Optical Tech Letters

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A filtenna (filtering antenna) for the fifth generation (5G) mobile communications in millimeter‐wave (mmWave) band is proposed in this paper. The filtenna is fed by a probe, and two radiation nulls are generated at the upper sideband based on the stacked‐patches structure. Then, two shorting pins loaded on the driven patch are introduced, which then result in the third radiation null. An “X‐character” shape radiation loop is added therefore, the fourth radiation null can be generated. Besides, the fifth radiation null at around 34 GHz is generated by adding four parasitic strips on the top radiation patch. The measured −10 dB impedance bandwidth of the filtenna is from 23.07 to 30.99 GHz. The average gain of the antenna is larger than 5.5 dBi, and the stopband suppression can reach 14 dB with a wide stopband. With the merits of low profile, wide stopband, and stable radiation, the proposed filtenna can be a good candidate for 5G mmWave applications.

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Section: Introductionmentioning

confidence: 99%

Millimeter‐wave filtenna for 5G application with multiple controllable radiation nulls and wide stopband

Li,

Zhu,

et al. 2023

Micro & Optical Tech Letters

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“…One method is replacing the last-stage resonator of the bandpass filter with a radiation patch, which usually realizes the filtering function by multiple resonators [1,2]. Another way is integrating the filtering function into the feeding network, which leads to a more complex feeding network and a larger antenna size [3][4][5]. In recent years, some researches are based on slot antennas with multi-layer substrate stacked structures; some of them use meta-surface (MS) to suppress unwanted signals [6][7][8]; some of them leave a certain height of air layer between two substrates to increase the impedance bandwidth [9,10], which will increase the overall height of the antenna, thus not conducive to miniaturization.…”

Section: Introductionmentioning

confidence: 99%

A Compact Single Layer Filtering Antenna with DGS for 5.1 GHz Application

Wang¹,

Liu²,

Ding³

et al. 2022

PIER Letters

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A compact bandpass filtering antenna operating at 5.1 GHz is introduced. The radiation layer makes up of a U-shaped patch and a trident resonator. The U-shaped patch is both the antenna and the last stage of the filter, which is excited by the insertion coupling part of the trident resonator. To improve the impedance matching and lower stopband suppression, a defective ground structure (DGS) is used. The dimension of the antenna is 0.36λ 0 × 0.36λ 0 × 0.01λ 0 (λ 0 is the wavelength at 5.1 GHz) without a complex external feed structure, which has enough bandwidth, a good frequency skirt selectivity, and a flat passband response. The measurement results manifest that the impedance bandwidth is 110 MHz, and the peak gain is 3.88 dBi. In addition, the filtering antenna also has a sharp roll-off rate and a satisfactory level of out-of-band suppression in the stopband.

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