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

Nguyen, Viet-Anh; Aziz, Rao Shahid; Park, Seong‐Ook; Yoon, Giwan

doi:10.2528/pier14073103

Cited by 7 publications

(3 citation statements)

References 12 publications

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“…To increase the capacity of the wireless communication channel by exploiting polarization diversity, dual-polarized antennas operating at dual or multi bands are also proposed in literature for base stations [14,15]. However the percentage bandwidths of each communication band considered in those applications (For example LTE band: 1710-2170 MHz) are generally at most 25%.…”

Section: Introductionmentioning

confidence: 99%

Wideband Omnidirectional and Sector Coverage Antenna Arrays for Base Stations

Alatan¹

2018

PIER C

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By using parallel strip line fed printed dipole antennas as array elements, an omnidirectional antenna array and a wide angle sector coverage array operating in octave band are designed. A maximum deviation of ±1.25 dB from the omnidirectional pattern is achieved for the omnidirectional array, and the average gain of the antenna was measured as being 5 dB in the 1.35-2.7 GHz band. For the sector coverage array, a special reflector design is utilized to maintain a half power beam width of around 115 • with a standard deviation of 14 • in the aforementioned frequency band. The average gain of the sector coverage array was measured as 10 dB, thereby being almost three fold larger than the average gain of the omnidirectional array.

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Section: Introductionmentioning

confidence: 99%

Wideband Omnidirectional and Sector Coverage Antenna Arrays for Base Stations

Alatan¹

2018

PIER C

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“…In the field of multiband wireless communications, the development of multiband sub-components (e.g., amplifiers, filters, switches and antennas) are highly desired, and they were developed to support several RF front-end systems [5][6][7][8]. Meanwhile, Double Pole Double Throw (DPDT) switch (which is a part of RF switches) is ordinarily used in RF front-end system to perform Time Division Duplex (TDD) switching between up-link (Transmitter mode) and down-link (Receiver mode) [9].…”

Section: Introductionmentioning

confidence: 99%

Fixed and Selectable Multiband Isolation of Double Pole Double Throw Switch Using Transmission Line Stub Resonators for Wimax and Lte

Shairi¹,

Zakaria²

2017

PIER B

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Abstract-A novel selectable multiband isolation of Double Pole Double Throw (DPDT) switch with switchable transmission line stub resonators has been proposed for applications of WiMAX and LTE in 2.3 and 3.5 GHz bands. In this paper, two DPDT switch designs are proposed; the first design is a fixed DPDT switch, and the second is a selectable DPDT switch. The second design allows selecting only one band and unselecting the other or selecting both of them. However, the first design does not allow so. The transmission line stub resonator used in this design is an open stub resonator with quarter wave of the electrical length. By using a simple mathematical model, the theory of the transmission line stub resonator was discussed where it can be cascaded and resonated at center frequencies of 2.3 and 3.5 GHz. Moreover, the cascaded transmission line stub resonators can be reconfigured between allpass and bandstop responses using discrete PIN diodes. The key advantage of the proposed DPDT with switchable transmission line stub resonators is a multiband high isolation with minimum number of PIN diodes. Therefore, the simulated and measured results showed less than 3 dB of insertion loss, greater than 10 dB of return loss and higher than 30 dB of multiband isolation in 2.3 and 3.5 GHz bands.

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“…In the last decades, various dual-polarized antennas have been proposed with different kinds of radiators [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]. Dipole antennas [3][4][5][6], patch antennas [7][8][9][10][11][12][13], dielectric resonator antennas (DRAs) [14,15], slot antennas [16][17][18][19], and loop antennas [20,21] are the typical radiators. Among them, the slot antennas are a promising candidate to achieve dual polarization since it has the merits of planar structure and broad bandwidth.…”

Section: Introductionmentioning

confidence: 99%

Hexa-Band High-Isolated Dual-Polarized Loop Antenna for Mobile Communications

Deng¹,

Li²,

Zhang³

et al. 2015

PIER Letters

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This paper presents a broadband hexa-band dual-polarized loop antenna for mobile communications. Two orthogonal one-wavelength-perimeter modes of a rectangular loop are excited by two orthogonal feedings. One mode for vertical polarization is excited by a circular monopole, and the other mode for horizontal polarization is excited by a slot-coupled microstrip line. By optimizing the antenna structure and the orthogonal feedings, the orthogonal polarizations can be achieved in a wide bandwidth with high ports isolation. The overall size of the proposed antenna is only 58 × 53 mm 2 (0.43λ 0 × 0.39λ 0 , λ 0 is the free-space wavelength at 2.2 GHz). A prototype of the proposed antenna is built and tested. The measured bandwidth with reflection coefficient less than −10 dB is 61.4% (1.65-3 GHz) for both orthogonal polarizations, covering the DCS, PCS, UMTS, WLAN, LTE2300, and LTE 2500 operation. The measured ports isolation is better than 28 dB over the entire band. In addition, the radiation patterns, gains and diversity performance are also discussed.

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

Cited by 7 publications

References 12 publications

Wideband Omnidirectional and Sector Coverage Antenna Arrays for Base Stations

Wideband Omnidirectional and Sector Coverage Antenna Arrays for Base Stations

Fixed and Selectable Multiband Isolation of Double Pole Double Throw Switch Using Transmission Line Stub Resonators for Wimax and Lte

Hexa-Band High-Isolated Dual-Polarized Loop Antenna for Mobile Communications

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