A Novel Planar Switched Parasitic Array Antenna With Steered Conical Pattern

Chen, W.H.; Sun, Jun; Wang, X.; Feng, Zhenghe; Chen, F.L.; Furuya, Y.; Kuramoto, A.

doi:10.1109/tap.2007.898643

Cited by 44 publications

(27 citation statements)

References 7 publications

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“…However, there are few studies on such ESPAR designs up to now. In [16], patch antennas are utilized to obtain a planar ESPAR with steered conical beams in the elevation plane. A three-element patch array based ESPAR is proposed in [17], which achieves continuous scanning range of -15 o to 15 o in the elevation plane.…”

Section: Introductionmentioning

confidence: 99%

Planar Ultrathin Small Beam-Switching Antenna

Zhang

Gao

Luo

et al. 2016

IEEE Trans. Antennas Propagat.

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Abstract-A novel planar ultra-thin electronically steerable parasitic array radiator (ESPAR) is presented in this paper. Through theoretical analysis of the electric fields of orthogonally crossed dipoles in phase quadrature, it is found that the crossed dipoles radiate linearly polarized (LP) wave with a rotational electric field in the azimuth plane. This characteristic is then utilized to design a planar crossed dipole ESPAR, termed as "CD-ESPAR". Furthermore, a simple but effective impedance matching method is also proposed and analyzed. To verify these concepts, a prototype with compact size and very low profile (0.42 0.42 0.006 ) resonating at 2.3GHz is designed, fabricated and measured. The measured results indicate that the proposed antenna achieves more than 17.8% impedance bandwidth and can produce four directional beams, covering the whole azimuth plane. Owing to its planar ultra-thin structure, compact size, electronically beam-switching ability, low power and low cost characteristics, it is promising for applications in wireless communications.

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Section: Introductionmentioning

confidence: 99%

Planar Ultrathin Small Beam-Switching Antenna

Zhang

Gao

Luo

et al. 2016

IEEE Trans. Antennas Propagat.

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“…The use of switchedbeam antennas is one of the effective ways for reducing the multipath interference, which leads to higher data transmission rate [1][2][3][4][5]. Many researches on switched-beam antennas can be found in literatures [6][7][8][9][10][11][12][13][14][15][16][17][18][19]. A flat four-beam array antenna was proposed in [6,7].…”

Section: Introductionmentioning

confidence: 99%

“…The array is uniform circular and consists of four-element dipole. Some switched-beam antennas using switched parasitic array antenna have been studied extensively recently [10][11][12][13][14][15]. Such an electronically steerable passive array radiator (ESPAR) antenna was designed and developed [10,11].…”

Section: Introductionmentioning

confidence: 99%

“…The antennas consist of one active and a number of passive radiators that are suitable for beam steering and null steering applications. A planar switched parasitic array antenna was proposed in [12], where the antenna was integrated with the seven hexagonal central grounded patch elements and the control system. A disk-load monopole array antenna was proposed in [13,14].…”

Section: Introductionmentioning

confidence: 99%

“…A switched angular diversity BSSA array antenna was presented [18]. However, the elevation pattern of the antennas in [12][13][14][15][16][17][18] is tilted. A switched-beam disc antenna was proposed in [19].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Switched-Beam Antenna Using Circumferential-Slots on a Concentric Sectoral Cylindrical Cavity Excited by Coupling Slots

Wounchoum¹,

Worasawate²,

Phongcharoenpanich³

et al. 2011

PIER

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Abstract-This paper presents a switched-beam antenna using circumferential-slot on a concentric sectoral cylindrical cavity excited by coupling slots to operate at 5.8 GHz. The advantages of this antenna are conformal structure, high directivity and capable of switched-beam pattern in six directions. The antenna design starts from a single sector which is capable of switching between radiating and non-radiating modes. The L-shaped coupling slots are proposed to accommodate the switching circuit. Each RF switch is made of two PIN diodes connected in a reverse series connection and placed across the slot at the appropriate location. Subsequently, the exciting probe is designed for matching TM 01 mode of the circular waveguide. The measured results of the proposed antenna give a gain of 7 dBi and |S 11 | less than −20 dB at 5.8 GHz. This antenna is suitable for base station applications that require the switched-beam pattern in the azimuthal plane.

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Hexagonal patch antenna with T‐shaped slot for frequency switching and conical radiation

Zhao

Chen

Sun

et al. 2010

Micro & Optical Tech Letters

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A compact hexagonal patch antenna with T-shaped slot for frequency switching and conical radiation is presented in this article. By utilizing a PIN diode to change the configuration of the slot, two frequency bands centered at 2.29 and 2.11 GHz, respectively, are achieved. Moreover, approximations to conical beam patterns at the two frequency bands are obtained. The proposed antenna is promising for wireless communication applications because of its low profile, switchable resonant frequency, and omnidirectional radiation characteristics. Detailed design of the proposed antenna including the implementation of PIN diode is described. Measured and simulated results are also shown and discussed.

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A Novel Planar Switched Parasitic Array Antenna With Steered Conical Pattern

Cited by 44 publications

References 7 publications

Planar Ultrathin Small Beam-Switching Antenna

Planar Ultrathin Small Beam-Switching Antenna

A Switched-Beam Antenna Using Circumferential-Slots on a Concentric Sectoral Cylindrical Cavity Excited by Coupling Slots

Hexagonal patch antenna with T‐shaped slot for frequency switching and conical radiation

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