A Low-Profile Filtering Antenna Using Slotted Dense Dielectric Patch

Wang, Xueying; Tang, Shi‐Chang; Shi, Xuguo; Chen, Jianxin

doi:10.1109/lawp.2019.2895320

Cited by 61 publications

(26 citation statements)

References 21 publications

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“…[7][8][9][10][11] Unfortunately, these innovations do not exist in the form of the main radiator, thus it will inevitably lead to some loss of space and energy, which is not desirable. Properly speaking, some creative ideas [12][13][14][15][16][17][18] will cross-utilize several of the following methods: slitting, punching metal pins, adding parasitic patches, hiring dielectric resonator, and attaching metasurfaces, and so on. To some extent, it can indeed practically improve the filtering characteristics of the antenna, but still more or less the presence of oversized, narrow bandwidth, or complex structure.…”

Section: Introductionmentioning

confidence: 99%

A simple filtering patch antenna based on stub‐loaded resonator

Yang

Zhai

Guo

2021

Micro & Optical Tech Letters

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In this article, a simple coaxial-feed filtering patch antenna based on stub-loaded resonator is investigated and analyzed. Owning to the addition of a pair of parasitic stubs, the original rectangular patch antenna acquires a new resonance point and an out-side radiation null beyond the upper band edge. Then, by establishing a transverse path (introducing connected stubs), the radiating and filtering responses at lower band have been enhanced accordingly. In short, it operates like a three-order filter with two-constrained radiation nulls along the passband outside. The novel design has been verified by machining and testing, which meets the expected lately. A fractional bandwidth of 28% and a stable realized gain of 5.8 dBi inband are finally measured, and more it also reaches a higher radiation efficiency of 83%. Besides, it exhibits a unidirectional radiation pattern with a low-cross polarization less than −20 dB in the boresight direction.

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Section: Introductionmentioning

confidence: 99%

A simple filtering patch antenna based on stub‐loaded resonator

Yang

Zhai

Guo

2021

Micro & Optical Tech Letters

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“…The advent of the dielectric patch (DP) antenna has effectively solved the above problems. [17][18][19][20] On the one hand, due to the anisotropic property of the DP resonator, the radiation mainly comes from the sidewalls, which is similar to the radiation mechanism of the MP antenna. 18 It means that the DP antenna has a relatively high gain while maintaining a low profile.…”

Section: Introductionmentioning

confidence: 99%

A differential‐fed dual‐polarized antenna with gain enhancement using hollow dielectric patch resonator

Wang

Tang

Yang

et al. 2021

Int J RF Microw Comput Aided Eng

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A differential-fed dual-polarized dielectric patch (DP) antenna with high gain, wide bandwidth, and high isolation is investigated in this article. Based on the analysis of the anisotropic property of the DP antenna, further exploration of gain enhancement is carried out. The introduction of the square air hole in the substrate to obtain a hollow DP resonator is a crucial technique. It not only increases the electromagnetic radiation from the sidewalls of the DP resonator to further improve the gain to 8.9 dBi, but also shifts the dominant TM 101 mode upward to get close to the higher-order TM 121 mode to achieve bandwidth expansion of 19.4%. By using the differential-fed scheme to excite the TM 101 mode, TM 121 mode and their degenerate modes, dual-polarization operation and high isolation level can be obtained simultaneously. K E Y W O R D Sdielectric patch (DP) resonator, differential-fed, dual-polarized antenna, high gain, low-profile, wideband

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“…, dual‐mode stub‐loaded resonators are introduced into the coupling feedlines, and a dual‐band bandpass filtering response for the patch antenna is generated. Recently, some other methods tend to use less filters or concentrate on the filtering response of radiators . For example, in Refs and filtering responses of the antennas are obtained by introducing open stubs in feedlines.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, some other methods tend to use less filters [7][8][9][10][11][12] or concentrate on the filtering response of radiators. [13][14][15][16][17][18][19][20] For example, in Refs 7 and 8 filtering responses of the antennas are obtained by introducing open stubs in feedlines. Radiation nulls can be individually controlled by changing lengths of the stubs.…”

mentioning

confidence: 99%

Differentially fed, dual‐band filtering antenna with H‐shaped slot

Zhao

Tang

et al. 2019

Micro & Optical Tech Letters

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A differentially fed, dual‐band microstrip patch antenna with filtering response is proposed in this letter. By etching an H‐shaped slot at a rectangle radiating patch, two resonant modes of the patch antenna, as well as an additional radiation null between the two operation bands are generated. Besides, two symmetric open‐stub coupling feedlines (OSCFs) are introduced to differentially excite the antenna, which offer two extra radiation nulls outside the two bands. Thus, a dual‐band bandpass filtering response for the proposed antenna is obtained. Measurement results of the prototype show good agreement with the simulated ones. Stable radiation patterns with low cross‐polarization levels of better than 28 dB are observed. Besides, a deep roll‐off of better than 22 dBi for the realized gain is also obtained.

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A Low-Profile Filtering Antenna Using Slotted Dense Dielectric Patch

Cited by 61 publications

References 21 publications

A simple filtering patch antenna based on stub‐loaded resonator

A simple filtering patch antenna based on stub‐loaded resonator

A differential‐fed dual‐polarized antenna with gain enhancement using hollow dielectric patch resonator

Differentially fed, dual‐band filtering antenna with H‐shaped slot

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