Unidirectional Dual-Band Stacked Patch Antenna With Independent Frequency Reconfiguration

Ge, Lei; Li, Mingjian; Wang, Jianpeng; Gu, Han

doi:10.1109/lawp.2016.2558658

Cited by 72 publications

(48 citation statements)

References 8 publications

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“…Stacked rectangular microstrip patches are usually used to generate dual‐band resonances . However, as shown in Figure A, when L 1 / L 2 > 2 or W 1 / L 2 > 2, TM 20 or TM 02 mode at larger patch may occur in the observational band.…”

Section: Fundamental Structure and Design Guidelinesmentioning

confidence: 99%

“…, dual‐band or multiband frequency reconfigurable antennas are presented, but their bands are not independently reconfigurable. Some researches on dual‐band or multiband frequency independently reconfigurable antennas have been presented . But most of them can only achieve independent tunability over two frequency bands .…”

Section: Introductionmentioning

confidence: 99%

“…Some researches on dual‐band or multiband frequency independently reconfigurable antennas have been presented . But most of them can only achieve independent tunability over two frequency bands . Antenna with more bands independently tunable may be needed in some applications and the challenge to design such antenna is tuning each band independently without affecting the other operating frequencies and preserving similar radiation patterns over the entire tuning range .…”

Section: Introductionmentioning

confidence: 99%

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A high frequency ratio quadri‐band frequency independently tunable antenna with spurious‐mode suppression

You

Yuan

et al. 2018

Micro & Optical Tech Letters

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A quadri‐band frequency independently tunable patch antenna with high frequency ratio is proposed in this article. It is realized by nesting two rectangular patches and two U‐shaped patches together separated with gaps. Each patch is resonating at one band. U‐shaped patches are utilized to suppress the spurious‐mode resonances when designing antenna with high frequency ratio. Two parallel varactors are embedded on each patch to tune its resonant frequency. Measured results demonstrate the quadri‐band antenna has tunable ranges of 0.75–0.97, 1.87–2.11, 2.37–2.63, and 3.36–3.72 GHz, respectively, with a high frequency ratio of 5, low spurious‐mode resonances, comparatively high gains of 2–8 dBi and efficiencies of 30–80%.

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Section: Fundamental Structure and Design Guidelinesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A high frequency ratio quadri‐band frequency independently tunable antenna with spurious‐mode suppression

You

Yuan

et al. 2018

Micro & Optical Tech Letters

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“…For instance, a study reported about the use of dipole, monopole, bow‐tie, Vivaldi, stacked‐patch antennas for breast cancer imaging. 3D antennas are also used in human head imaging, congestive heart failure detection, etc …”

Section: Introductionmentioning

confidence: 99%

Performance analysis of a 3D unidirectional antenna opted for biomedical microwave imaging

Ullah

Alam

Islam

2018

Micro & Optical Tech Letters

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In this paper, a reflector type unidirectional 3D antenna for biomedical microwave imaging has been presented. A reflector wall perpendicular to the ground plane has been introduced to achieve higher gain and directive radiation pattern. Bending technique is utilized to reduce the overall antenna size and to get resonance at a lower frequency. The proposed antenna obtained measured operating band at 2.37 GHz to 3.70 GHz. The dimension of the 3D radiating structure is 30 × 10 × 17 mm3. The antenna has a peak realized gain of 4.52 dB. Unidirectional radiation pattern and gain within lower microwave frequency, make the proposed antenna a potential candidate to be used in microwave imaging for biomedical diagnosis. The design and simulation process are performed in the CST Microwave Studio software. The antenna is fabricated from 0.2 mm thick copper sheets. PNA Network Analyzer (N5227A) and Satimo Nearfield Measurement system has been used to measure the performance of the fabricated prototype.

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“…wider impedance bandwidth than the antenna in [1][2][3][4][5]. Meanwhile, a lot of dual-polarized antennas with different feeding network mechanisms were designed in past research [7][8][9][10][11][12][13].…”

mentioning

confidence: 99%

STACKED-PATCH DUAL-BAND & DUAL-POLARIZED ANTENNA WITH BROADBAND BALUNS FOR WIMAX & WLAN APPLICATIONS

Yu¹,

Sun²,

Zhu³

et al. 2018

PIER M

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Abstract-In this paper, a dual-band antenna in orthogonal polarization with stacked configuration is proposed. The proposed antenna introduces two layers of radiating patches to realize the dual frequency characteristic. A pair of novel 180 • broadband microstrip baluns, printed on the backside of the bottom substrate, are utilized to feed the antenna. By employing wideband feeding mechanisms for the two input ports, high input port isolation and wide impedance bandwidth are successfully realized. The proposed antenna is fabricated and measured. It exhibits a characteristic of two resonant frequencies. The lower band f 1 is from 2.75 to 4.01 GHz with a relative bandwidth of 37.3% and over 8.1 dBi gain at two ports, and the upper band f 2 is from 4.4 to 5.21 GHz with a relative bandwidth of 16.9% and over 5.8 dBi gain at two ports. The port isolation is below −35 dB, and the cross-polarization level is below −20 dB at broadside across the whole band.

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Unidirectional Dual-Band Stacked Patch Antenna With Independent Frequency Reconfiguration

Cited by 72 publications

References 8 publications

A high frequency ratio quadri‐band frequency independently tunable antenna with spurious‐mode suppression

A high frequency ratio quadri‐band frequency independently tunable antenna with spurious‐mode suppression

Performance analysis of a 3D unidirectional antenna opted for biomedical microwave imaging

STACKED-PATCH DUAL-BAND & DUAL-POLARIZED ANTENNA WITH BROADBAND BALUNS FOR WIMAX & WLAN APPLICATIONS

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