Multi-feed reconfigurable pattern antenna implemented by switches

Chen, W.H.; Chen, F.L.; Li, N.; Feng, Zhenghe

doi:10.1109/aps.2005.1551827

Cited by 6 publications

(6 citation statements)

References 6 publications

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“…Beaming steering was achieved by controlling the relative phase between the excited probes. This technique was reported in [28] to steer the radiation pattern of microstrip antennas; however, to the authors knowledge, no previously published work has been reported on applying the same technique on dielectric antennas. In this work diametrically opposite probes are driven in phase opposition.…”

Section: Beam Forming By Controlling the Phase Of The Excited Probesmentioning

confidence: 95%

Multi-Feed Dielectric Resonator Antenna With Reconfigurable Radiation Pattern

Fayad¹,

Record²

2007

PIER

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Abstract-This paper describes a steerable broadband dielectric antenna with 30% fractional bandwidth, operating at 11 GHz. The structure consists of a hollow cylindrical dielectric pellet of permittivity 6 fed by four probes. Two methods are described for beam forming: 1-Beam forming has been achieved by individually switching between excited probes. The switched excitation mechanism provides the antenna with a reconfigurable radiation beam that can be moved in the azimuth plane. 2-Variable phase excitation of several probes. Complete azimuth sweep was demonstrated by both methods, allowing any desired angle of beam directions. Simulation and experimental results are presented to illustrate the advantages of both designs.

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Section: Beam Forming By Controlling the Phase Of The Excited Probesmentioning

confidence: 95%

Multi-Feed Dielectric Resonator Antenna With Reconfigurable Radiation Pattern

Fayad¹,

Record²

2007

PIER

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“…The patterns of the other cases offset a lot with respect to CASE1, while maintaining the same beam shape. Compared with CASE1, it can be found that the pattern of CASE2 rotates clockwise about 6 , and CASE3 rotates anticlockwise about 6 . The angular spacing between CASE2 and CASE3 is also 6 .…”

Section: Simulated and Experimental Resultsmentioning

confidence: 94%

“…Compared with CASE1, it can be found that the pattern of CASE2 rotates clockwise about 6 , and CASE3 rotates anticlockwise about 6 . The angular spacing between CASE2 and CASE3 is also 6 . For all cases (CASE1,CASE2 and CASE3), the 3dB beamwidth of each .…”

Section: Simulated and Experimental Resultsmentioning

confidence: 94%

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A novel ring antenna with pattern and frequency reconfigurability

Hang

Wang

Liu

2010

2010 International Conference on Microwave and Millimeter Wave Technology

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A novel ring antenna with pattern and frequency reconfigurability is proposed in this paper. Ring structure can increase the effective length of radiation element of an antenna within the finite dimension. The proposed antenna's dimension with respect to the operating frequency(2GHz and 2.4GHz) is 44mm 44mm. Three switches are used in the antenna to achieve different radiation patterns and operating frequencies.When only one of the three switches is closed, the antenna can provide the patterns that point at two of the six directions at 2GHz. When two of the three switches are closed, the antenna can provide two of the six different patterns at 2.4GHz. The bandwidths are 1.85GHz-2.10GHz for 2GHz, and 2.2GHz-2.5GHz for 2.4GHz. The antenna can be used in many applications.

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“…Reconfigurable antennas allow the reuse of the existing volume to operate at different frequency bands [2,6], permit beam steering [2,7,13] and ability to change polarization [2,8,9]. Integrating DRA with reconfigurability is a promising technology for high performance wireless communication systems.…”

Section: Introductionmentioning

confidence: 99%

A Dual Band Frequency and Pattern Reconfigurable Dielectric Resonator Antenna

Alsath¹,

Bilvam²,

Kanagasabai³

et al. 2012

PIER C

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Abstract-A new approach to obtain frequency and pattern reconfiguration in Dielectric Resonator Antenna (DRA) has been proposed. The design consists of two identical aperture coupled DRAs separated by a distance of λ 0 . A switchable feed based frequency reconfiguration is discussed in which the feed acts as an ideal switch. This design operates at two frequencies viz., 3.6 GHz and 5.2 GHz. These frequencies are independently tuned using trimmers. Further, the slot length of both the DRAs can be tuned independently using movable shorting pins driven by miniature motors. The shorting pins form a part of the ground plane. By varying the slot length of the DRA, the resonant frequency is controlled which in turn helps in gaining pattern reconfiguration. The structure has been designed for lower and middle band frequencies of WLAN, operating between 5.15-5.25 GHz and 5.25-5.35 GHz, respectively. These types of antennas can be employed in MIMO systems for increasing the capacity through Pattern diversity.

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Multi-feed reconfigurable pattern antenna implemented by switches

Cited by 6 publications

References 6 publications

Multi-Feed Dielectric Resonator Antenna With Reconfigurable Radiation Pattern

Multi-Feed Dielectric Resonator Antenna With Reconfigurable Radiation Pattern

A novel ring antenna with pattern and frequency reconfigurability

A Dual Band Frequency and Pattern Reconfigurable Dielectric Resonator Antenna

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