A wideband switched beam patch antenna array for LTE and Wi-Fi

Fernandes, Milind; Bhandare, Aniket; Dessai, Chetan; Virani, H. G.

doi:10.1109/indcon.2013.6726150

Cited by 11 publications

(5 citation statements)

References 7 publications

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“…The advantage of the proposed antenna is that the fan beamwidth is narrow in xoy plane, from 21.5 • to 24.5 • , which can help to improve localization accuracy in PSs. The peak gains of the four directions are from 9.1 dBi to 9.8 dBi, higher than the ones in [5], [6], [9], [10] except for [8]. It is because the radiation beam in [8] is a pencil beam (PB) that is more directional than a fan beam, and the loss tan of antenna substrate in [8] (Duroid 5880) is three times lower than that in the proposal (RO4003C).…”

Section: Antenna Results and Discussionmentioning

confidence: 77%

A Narrow Beam Steering Antenna Array for Indoor Positioning Systems Based on Wireless Sensor Network

Thi

Phuong

2022

IEEE Access

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This paper proposes the 2.45 GHz planar Beam Steering Antenna Array for Indoor Positioning Systems. The antenna array consists of a phase shifter based on a 4 × 4 Butler matrix, and an array of four dipole Yagi antennas. By choosing one of four beams using a switching controller, the main beam of the antenna can steer in four directions from +37 • , −12 • , +12 • to −36 • . The antenna has a narrow fan beam with a beamwidth in the azimuth plane of from +21.5 • to +24.5 • and in the elevation plane of approximately 90 • which effectively minimizes multipath signals. These advantages are suitable for positioning systems to increase location accuracy. The antenna achieves a peak gain of from 9.1 to 9.8 dBi in four directions, a wide band of 400 M Hz. The fully electronically steerable antenna prototype has been designed using CST software, simulated based on the finite element method, and fabricated on the RO4003C substrate as well as measured. The antenna is implemented in the Indoor Positioning System using three different location methods, including trilateration, triangulation, and fingerprinting, to highlight the antenna's advantages in improving location accuracy with the ratio between the mean location error and area of 0.051, 0.033, and 0.023 respectively.

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Section: Antenna Results and Discussionmentioning

confidence: 77%

A Narrow Beam Steering Antenna Array for Indoor Positioning Systems Based on Wireless Sensor Network

Thi

Phuong

2022

IEEE Access

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“…Ripple (dB) (2, 2) 0.1 (2,4) 0.1 (4, 2) 2.5 (4,4) 0.7 (4,8) 0.3 (8,2) 15 (8,4) 3 (8,8) 0.8 (8,16) 0.2 Figure 9 depicts the average normalized SNR for three array sizes, that is, arrays with 2, 4, and 8 elements. Considering the array with two elements (the green line with diamond dots), it is possible to realize that there is no gain (in a practical point of view) when the number of feedback bits (and the number of beam-pointing directions) is increased.…”

Section: Array (Elements Beams)mentioning

confidence: 99%

“…Antennas and arrays have played an important role along this evolution. Several designs and techniques were applied to wireless communications in order to improve the system performance, such as MIMO systems combined with antenna array and smart antenna concepts [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Linear Array Design with Switched Beams for Wireless Communications Systems

Ludwig-Barbosa

Schlosser

Machado

et al. 2015

International Journal of Antennas and Propagation

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This paper presents an analysis for optimal design of switched beamforming applied to a linear array for wireless communication systems. The beam switching scheme provides coverage of a given sector in azimuth and controls the sidelobe level simultaneously. The analysis was developed considering arrays composed of Quasi-Yagi elements. The model assumes a user moving in the azimuthal direction under a constant velocity and with an estimation of the signal-to-noise ratio (SNR) at the mobile user (MU). The radio base station applies the beam that yields the best performance during transmission. The decision is based on the feedback information received from the MU. The goal of the analysis is to determine the best trade-off between the array size and number of feedback bits necessary to maximize the SNR at the receiver. The results show that a compromise between the number of beam-pointing directions and the array size should be taken into consideration for a wireless communication system design.

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“…The high capacity in wireless networks employing smart antenna systems is accomplished by orienting the radiation in the desired direction. Smart antennas employ an array of antennas for radiation and can be deployed as a switched beam system or an adaptive array system [5]. In this, the switched beam antenna can be realized easily at low cost in comparison with an adaptive antenna array.…”

Section: Introductionmentioning

confidence: 99%

Microstrip Patch Antenna Assisted Compact Dual Band Planar Crossover

Menon

2017

Electronics

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Abstract:In Microwave Monolithic Integrated Circuits, crossovers maintain signal purity when transmission lines overlap with each other. A simple crossover for dual band applications, particularly suitable for the development of smart antennas, is presented in this paper. Derived from conventional patch antenna, the proposed crossovers are easy to design and fabricate, thus reducing the overall complexity. Design is verified for a dual band crossover at 2.4/5.23 GHz on FR4 (Fiberglass Reinforced) epoxy and tested using Keysight E5080 A Vector Network Analyser. The results obtained by simulation and measurement are in agreement. The proposed crossovers find application in a Butler matrix for phased array and smart antenna systems.

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A wideband switched beam patch antenna array for LTE and Wi-Fi

Cited by 11 publications

References 7 publications

A Narrow Beam Steering Antenna Array for Indoor Positioning Systems Based on Wireless Sensor Network

A Narrow Beam Steering Antenna Array for Indoor Positioning Systems Based on Wireless Sensor Network

Linear Array Design with Switched Beams for Wireless Communications Systems

Microstrip Patch Antenna Assisted Compact Dual Band Planar Crossover

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