An Inexpensive Reconfigurable Planar Array for Wi-Fi Applications

Donelli, Massimo; Febvre, Pascal

doi:10.2528/pierc12012304

Cited by 49 publications

(51 citation statements)

References 11 publications

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“…Additional operating frequency is found with the loading of a pair of spur lines at the non-radiating edge, which reduces the antenna size [14]. The design of several miniaturized antennas for practical applications has been reported in some literatures [15][16][17]. Various approaches of designing multiband and broadband antennas have been discussed in [18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Slot Loaded Compact Microstrip Patch Antenna for Dual Band Operation

Roy¹,

Bhunia²,

Sarkar³

et al. 2017

PIER C

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Abstract-A novel design of a compact microstrip patch antenna using meandering technique is proposed in this paper where the designed antenna seems to behave as a microstrip patch loaded with conducting strips. A rectangular microstrip patch antenna with addition of conducting strip radiates at much lower frequency than a conventional rectangular microstrip antenna, due to increase of resonant length, but it also causes the increase in total size of the antenna. In this article, the resonant frequency has been lowered significantly by loading a regular rectangular microstrip patch antenna with rectangular slot in a proper position in such a way that the whole structure looks like a strip loaded radiator. About 86.5% size reduction has been achieved experimentally with very good agreement of simulated and measured results. The equivalent circuit and approximate resonant frequency calculation have been discussed in this paper.

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Section: Introductionmentioning

confidence: 99%

Slot Loaded Compact Microstrip Patch Antenna for Dual Band Operation

Roy¹,

Bhunia²,

Sarkar³

et al. 2017

PIER C

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show abstract

“…With the development of 4G LTE and future 5G technology, not only the planar MIMO antenna array is required on the mobile device, like the one described in [19], but also the massive MIMO antenna array is needed in the base station. To verify Antenna D as a good candidate for the massive MIMO antenna array or LSA for the future 5G base station applications, which requires smaller spacing between adjacent elements to realize a larger tilting range for the 3-D multiple beams beamforming, without degrading the isolation much, a 4 × 4 array prototype of LSA is fabricated with Antenna D, which is shown in Fig.…”

Section: × 4 Array Prototype Of Lsamentioning

confidence: 99%

A Scalable Compact Wideband Dual-Polarized Printed Dipole Antenna for Base Station Applications

Tang¹,

Cao²,

Ho³

2017

PIER C

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Abstract-A novel compact wideband dual-polarized printed dipole antenna for base station application is presented. The proposed antenna is composed of four assembled substrates. Two pairs of identical arrow-shaped conductive lines on the tophat substrate form two orthogonal polarized dipoles. Two baluns connected with 50 Ω coaxial cables are integrated on another two vertical substrates to excite the dipoles. The other horizontal board at bottom provides grounding. A rectangular boxshaped reflector is also used to enhance its stability in radiation patterns over the operating frequencies. It achieves 22% size reduction from the conventional printed half-wavelength cross-dipole, and 43.2% impedance bandwidth (VSWR < 2), while maintaining a stable radiation pattern with measured CrossPolarization Degradation (XPD) better than −22 dB at boresight and an average peak gain of 8.4 dBi for a 65 • Azimuth Beamwidth base station application at 700/800/900 MHz bands. With the scalable miniature structure, it may also find itself suitable for side-by-side multiband Multi-Input Multi-Output (MIMO) or Large-Scale Antenna (LSA) 5G base station applications. A 4 × 4 array prototype of the LSA is also designed and fabricated, and it achieves 27.8% impedance bandwidth (VSWR < 1.5) with well decorrelated element performance and array XPD better than −20 dB across as large as 30 • tilting range.

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“…To date, many beam forming and pattern synthesis approaches have been developed by researchers [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. The first approach in which the transmitting pattern design in general is investigated is well-known analytic function method, such as Chebyshev and Taylor pattern synthesis.…”

Section: Introductionmentioning

confidence: 99%

“…In [10], the least square method has been universally applied in signal processing and beam forming. In [11][12][13][14][15][16][17][18][19], various methods for pattern synthesis are presented.…”

Section: Introductionmentioning

confidence: 99%

A Steerable Least Square Approach for Pattern Synthesis

Chen¹,

Yin²,

Jiao³

2017

PIER M

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Abstract-The least square method has been widely applied in many fields. However, when the approach is used for antenna array pattern synthesis, it is not excellent. In this paper, the least square method is used to synthesize antenna array pattern, and its performance is reviewed. Then contraposing to the shortcoming of the least square method, a new steerable least square (SLS) method is put forward. For an antenna array whose manifold matrix has been determined, the projection matrix equation can be derived from array manifold matrix easily. In order to get premium solution of array element excitation, a novel projection matrix equation with adjustable matrices is adopted. The results of simulations show that the pattern synthesized by the traditional least square method fits the targeted pattern badly and is worse in the key performance indicators of peak level of side-lobe and null beam level than the targeted pattern; however, the pattern synthesized by the new SLS method fits the targeted pattern well in zero point and local peak distribution and is better in the key performance indicators of peak level of side-lobe and null beam level than the targeted pattern.

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An Inexpensive Reconfigurable Planar Array for Wi-Fi Applications

Cited by 49 publications

References 11 publications

Slot Loaded Compact Microstrip Patch Antenna for Dual Band Operation

Slot Loaded Compact Microstrip Patch Antenna for Dual Band Operation

A Scalable Compact Wideband Dual-Polarized Printed Dipole Antenna for Base Station Applications

A Steerable Least Square Approach for Pattern Synthesis

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