A Study of Radio Zone Length of Dual-Polarized Omnidirectional Antennas Mounted on Rooftop for Personal Handy-Phone System

Ando, A.; Kondô, Akira; Kubota, S.

doi:10.1109/tvt.2007.905432

Cited by 26 publications

(20 citation statements)

References 9 publications

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“…They can be easily disguised as poles or masts in urban area. In [13][14][15], several HP omnidirectional slot antennas were proposed. A substantial problem was pointed out that the deviation of radiation pattern would be negligible only in a narrow bandwidth [15].…”

Section: Introductionmentioning

confidence: 99%

A Slim Horizontally Polarized Omnidirectional Antenna Based on Turnstile Slot Dipole

Chin¹,

Jou²

2014

PIER C

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Abstract-A novel horizontally polarized (HP) antenna with omnidirectional pattern is presented in this paper. The proposed antenna applies the concept of rotating electric field method to conventional slot dipoles. Two CPW-fed slot dipoles are placed in a perpendicularly conjugate form. By properly arranging the magnitude and phase of input signals, the omnidirectional pattern can be synthesized at broadside. A prototype is developed at the 2.6 GHz band, which offers a horizontally polarized omnidirectional radiation pattern with gain of 2.5-3.4 dBi, and the measured antenna efficiency is greater than 73% through the operating band (2.4-2.8 GHz). Furthermore, a 20-dB polarization purity is achieved in this design. The overall volume of the proposed antenna is 22 × 22 × 90 mm 3 (0.19λ 0 ×0.19λ 0 ×0.78λ 0 ). Distinct from the other proposed HP antennas provided with planar geometry, this antenna is slim in shape, and it can be readily integrated with vertical dipoles to form a polarization diversity system in current wireless router and AP applications.

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Section: Introductionmentioning

confidence: 99%

A Slim Horizontally Polarized Omnidirectional Antenna Based on Turnstile Slot Dipole

Chin¹,

Jou²

2014

PIER C

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“…Over the last decades, a number of omnidirectional antennas with VP or HP have been developed [14][15][16][17][18][19][20]. In order to obtain the VP, a printed planar microstrip antenna is investigated in [14], and a similar design adopting the dipole is also reported in [15].…”

Section: Introductionmentioning

confidence: 99%

“…Nevertheless, the omnidirectional planes for VP and HP are different. In [20], the dual-polarized antenna is comprised of a dielectric-loaded slotted-cylinder antenna for the HP and a conventional collinear array antenna for the VP. However, the beam gets tilted in the elevation plane thanks to the asymmetrical structure.…”

Section: Introductionmentioning

confidence: 99%

A Compact Omnidirectional Dual-Polarized Antenna for 2.4-GHZ Wlan Applications With Highly Isolated Orthogonal Slots

Liu¹,

Xue²,

Cao³

et al. 2013

PIER C

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Abstract-An omnidirectional dual-polarized slot antenna with high port isolation for 2.4-GHz wireless local area network (WLAN) applications is proposed in this paper. The omnidirectional radiation patterns of the vertical polarization (VP) and horizontal polarization (HP) are achieved by individually cutting two orthogonal slots onto the metal walls of a cuboid antenna. The overall volume of the compact antenna is only 60 × 10 × 10 mm 3 (0.488λ 0 × 0.081λ 0 × 0.081λ 0 ). A prototype of the designed antenna is manufactured and tested. Both simulated and measured results show that the −10 dB impedance bandwidths of dual polarizations cover the desired band of 2.4-2.484 GHz and the port isolation, in the operating frequency, is less than −35 dB. Stable measured gains are greater than 2.75 and 1.35 dBi for the VP and HP, respectively.

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“…Over the last decade, a number of HP omnidirectional antennas have been developed. In [9][10][11][12], several HP omnidirectional slot array antennas were proposed. But slot antennas normally have a narrow bandwidth (e.g., < 5%, see [9]).…”

Section: Introductionmentioning

confidence: 99%

“…In [9][10][11][12], several HP omnidirectional slot array antennas were proposed. But slot antennas normally have a narrow bandwidth (e.g., < 5%, see [9]). The most famous HP omnidirectional wirestructure antenna is the Alford loop [13].…”

Section: Introductionmentioning

confidence: 99%

Development of a Broadband Horizontally Polarized Omnidirectional Planar Antenna and Its Array for Base Stations

Quan¹,

Li²,

Wang³

et al. 2012

PIER

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Abstract-A novel broadband horizontally polarized (HP) omnidirectional planar antenna is developed for mobile communications. The proposed antenna consists of four printed arc dipoles that form a circular loop for HP omnidirectional radiation. A broadband feeding network which includes four broadband baluns and an impedance matching circuit is designed to excite the four arc dipoles. An eight-element linear antenna array is developed for 2G/3G base stations. A broadband power divider is used to feed the antenna array. Experimental results show that the HP omnidirectional antenna element has a bandwidth of 31% (1.66-2.27 GHz) while its array has a bandwidth of 34% (1.67-2.35 GHz) and an omnidirectional antenna gain of ∼ 8 dBi. Both of the antenna element and its array have good omnidirectivity over the 10-dB return loss bandwidth. Simulated and measured results for the antenna element and its array are presented.

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A Study of Radio Zone Length of Dual-Polarized Omnidirectional Antennas Mounted on Rooftop for Personal Handy-Phone System

Cited by 26 publications

References 9 publications

A Slim Horizontally Polarized Omnidirectional Antenna Based on Turnstile Slot Dipole

A Slim Horizontally Polarized Omnidirectional Antenna Based on Turnstile Slot Dipole

A Compact Omnidirectional Dual-Polarized Antenna for 2.4-GHZ Wlan Applications With Highly Isolated Orthogonal Slots

Development of a Broadband Horizontally Polarized Omnidirectional Planar Antenna and Its Array for Base Stations

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