A Compact Dual-Band Pattern Diversity Antenna by Dual-Band Reconfigurable Frequency-Selective Reflectors With a Minimum Number of Switches

Ko, Chun-Hsu; Tarn, I-Young; Chung, Shyh‐Jong

doi:10.1109/tap.2012.2225011

Cited by 46 publications

(24 citation statements)

References 12 publications

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“…Many pattern reconfigurable antennas have been reported in literature [5][6][7][8][9][10][11][12][13][14][15][16], such as a corner reflector antenna for single band [6], dual-band [7,8] and compact structures that can provide different directional radiation patterns using electronic switches for single band [9][10][11][12], wideband characteristics [13,14]. A pattern reconfigurable antenna that has multiband characteristic in WLAN and WiMAX bands can improve the whole system performance.…”

Section: Introductionmentioning

confidence: 99%

“…However, few published designs have discussed pattern reconfiguration of multiband antennas in the dense unlicensed WLAN 2.4/5.2/5.8 and WiMAX 3.5/5.5 bands. In [7,8], pattern diversity antennas are designed in WLAN and WiMAX systems. However, the antennas are fairly complex as they have many corner reflectors and make them impractical to be used in modern devices.…”

Section: Introductionmentioning

confidence: 99%

“…In [15], a dielectric resonator antenna is designed for only two frequencies of 3.5 and 5.2 GHz. However, no such pattern reconfigurable antennas [5][6][7][8][9][10][11][12][13][14][15][16] have been implemented, which cover all the WLAN and WiMAX bands.…”

Section: Introductionmentioning

confidence: 99%

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A Pattern Reconfigurable Antenna for Wlan and Wimax Systems

Koley¹,

Murmu²,

Pal³

2016

PIER C

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Abstract-A novel tri-band pattern reconfigurable planar antenna is proposed. Tri-band is achieved by inserting a bandstop filter at the feed line of a wideband monopole antenna with complementary split ring resonator (CSRR) on a circular patch. Two parasitic arc-shaped stubs are in the back side of the radiator that works as a reflector. The antenna radiation pattern is switched from omnidirectional to one of two different directional modes by activating one of the stubs. Three different radiation modes are controlled by four ideal switches. Radiation pattern reconfigurability makes it suitable for the use of flexible cognitive radio front-end system. The proposed antenna is suitable for WLAN 2.4/5.2/5.8 GHz and WiMAX 3.5/5.5 GHz applications. Good agreement between simulated and measured results validates its possible application.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Pattern Reconfigurable Antenna for Wlan and Wimax Systems

Koley¹,

Murmu²,

Pal³

2016

PIER C

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show abstract

“…Likewise in many other studies, the dual polarization was achieved by the combination of printed dipoles, patch elements arrays and spiral antennas, as reported in [1][2][3][4]. The pattern diversity approach was investigated by Tarn et al in [9,10]. Their study proposed a radiation pattern diversity reflector antenna fed by a monopole.…”

Section: Introductionmentioning

confidence: 99%

“…A bias-switching circuit is designed to feed the four elements, using the BAR 64-02W [8] p-i-n diodes for the beam switching purpose. On the other hand, the vertical antenna consists of printed monopole in which the beam switching mechanism is achieved by the employment of reconfigurable frequency selective reflectors (RFSR) [10]. The vertical monopole antenna is surrounded by the RFSR feeding, based on the BAR 64-02W p-i-n diode switches.…”

Section: Introductionmentioning

confidence: 99%

A Design of Multiband, Dual-Polarization, Beam-Switchable Dual-Antenna for Indoor Base Stations

Nguyen¹,

Aziz²,

Park³

et al. 2014

PIER

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Abstract-A novel multiband, dual-polarization, beam-switched dual-antenna design, covering some LTE and WLAN bands, has been proposed for indoor base stations. The proposed design consists mainly of dual modified monopole antennas. The horizontal antenna consists of four printed monopole elements, and the control circuit using p-i-n diodes has been implemented for feeding to each monopole element. The vertical monopole antenna beam patterns are controlled by reconfigurable frequency selective reflectors (RFSR) technique. The p-i-n diodes have been utilized for switching mechanism to feed the four RFSR. The measured and simulated results indicate that the antenna system possesses multiband and dual polarization. It has been observed from the simulated and measured reflection coefficients |S 11 | that the presented dual antenna system supports both LTE (1.7-2.1 GHz) and WLAN (2.5 GHz and 5.8 GHz) band frequencies. Moreover, the radiation characteristics show dual-polarization behaviors of the presented antenna system and beam switching states suitable for small cell indoor-base stations.

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Mechanically pattern reconfigurable dual‐band antenna with omnidirectional/directional pattern for 2.4/5GHz WLAN application

You

Yuan

et al. 2017

Micro & Optical Tech Letters

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A mechanically pattern reconfigurable dual‐band antenna with an omnidirectional radiation pattern or a directional pattern for 2.4/5GHz dual‐band WLAN application is presented. By manually rotating the top substrate, the antenna can operate at patch state or monopole state, respectively. A novel U‐gap structure consisting of an outer patch, an inner patch and a U‐shaped gap is introduced to achieve the dual band feature at both operation states. The measured overlapped bands of the two states are 2.4–2.56 GHz and 5.22–6 GHz, covering the 2.4–2.48 GHz and most of the 5.15–5.85 GHz WLAN band. The measured peak gain is 2.4 dBi at 2.5GHz, 6.2 dBi at 5.5 GHz for monopole state, and 5.8 dBi at 2.5 GHz, 7.2 dBi at 5.5 GHz for patch state.

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A Compact Dual-Band Pattern Diversity Antenna by Dual-Band Reconfigurable Frequency-Selective Reflectors With a Minimum Number of Switches

Cited by 46 publications

References 12 publications

A Pattern Reconfigurable Antenna for Wlan and Wimax Systems

A Pattern Reconfigurable Antenna for Wlan and Wimax Systems

A Design of Multiband, Dual-Polarization, Beam-Switchable Dual-Antenna for Indoor Base Stations

Mechanically pattern reconfigurable dual‐band antenna with omnidirectional/directional pattern for 2.4/5GHz WLAN application

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