Reconfigurable microstrip patch antenna array with beam shaping

Tarmizi, Ahmad; Nor, Mat; Tharek, A.R.; Abdolee, Reza

doi:10.1049/ic.2007.1589

Cited by 9 publications

(2 citation statements)

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“…The beam-steering antennas are phased arrays, which provide flexibility in direction of beam [1]. The elements of phased array are fed with incremental phases so as to control the direction of beam [2–4]. This may be accomplished using microstrip lines of incremental lengths, or using MEMS-distributed transmission line or through electronics functions in hybrid or fully integrated circuits.…”

Section: Introductionmentioning

confidence: 99%

Beam-steering in a three-element circular antenna-array

Garg

Mishra

Purohit

et al. 2014

Int. j. microw. wirel. technol.

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A simple and volume efficient circular antenna-array design with a low profile programmable beam rotation mechanism was presented. The proper selections of the rotation vector and the excitation coefficients of rectangular array-elements were made for rotation of the beam. The proposed rotation mechanism was capable to rotate the radiation pattern at any desired speed and to transmit in any desired direction, and the design included the ease of construction. Although simulating the radiation pattern using FEKO EM simulator, two basic functions, the power splitter and the introduction of phase difference, were included in feed network of microstrip circuit to divide the power and then individually feeding the each patch after introducing the desired phase difference.

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Section: Introductionmentioning

confidence: 99%

Beam-steering in a three-element circular antenna-array

Garg

Mishra

Purohit

et al. 2014

Int. j. microw. wirel. technol.

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“…However, this method typically used a dual operating frequency has been used to reconfigure a beam pattern. The antenna suggested in [7], worked at linear array antenna with a reconfigurable beamwidth pattern. However, they required many numbers of patches to generate various numbers of beam pattern.…”

Section: Introductionmentioning

confidence: 99%

A reconfigurable aperture planar array antenna based on separated feeding network

Ali

Rahman

Kamarudin

et al. 2008

2008 5th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technolog

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-In this paper an innovative reconfigurable aperture antenna in a planar array of small patches have been investigated in order to steer the radiation pattern by changing the switches that are ON and OFF mode. The basic concept of the antenna is verified by comparing theoretical results with measurements for configurations in which the PIN Diode switches are simply integrated with the feeding line. The versatility of this designed antenna is using a separated feeding network plane interconnected by a sma coaxial connector. The simulation results for the antenna are then compared with measurements is used to steer the beam pattern of the antenna. Observed from the results, it is demonstrated that the steering beam pattern at various direction with good impendence matching is be achieved. The antenna was fabricated and measured and the results for the return losses show reasonable agreement.

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Design of a simple circularly polarised dual‐frequency reconfigurable microstrip patch antenna array for millimetre‐wave applications

Famoriji

Yang

et al. 2019

IET Microwaves, Antennas & Propagation

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Reconfigurable antenna array has received a lot of attention in present‐day wireless communication systems. In this study, a simple design of a four‐element circularly polarised dual‐frequency reconfigurable microstrip patch antenna array for millimetre‐wave applications is proposed. The sequentially rotated series–parallel stub approach is employed in the feeding network design to provide symmetrical array elements positioning, and bringing about a good axial ratio of polarisation. Additionally, a matching branch per element is employed to generate spatial flexibility for element positioning and good impedance matching. Furthermore, due to high‐cost constraints of Ka‐band RF switches (such as PE42524 SPDT), switches are considered as transmission lines, and are placed within the fractal slots of each elements to reconfigure the frequency. The proposed array operates in two switching states: ON and OFF. Hence, it allows dual‐frequency reconfigurability of 27 and 35 GHz for the ON and OFF states, respectively. A full array prototype was then fabricated on a Rogers R5880 substrate and tested in an anechoic chamber. Simulation and measurement results corroborate quite well in general. Patch antenna array gives much better result characterised by reconfigurable behaviour with associated return loss, radiation pattern characteristics, and ˂ 3 dB axial ratio polarisation bandwidth than the single element. The proposed antenna array finds good applications in radar systems, satellite communications, and aerospace.

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Reconfigurable microstrip patch antenna array with beam shaping

Cited by 9 publications

References 0 publications

Beam-steering in a three-element circular antenna-array

Beam-steering in a three-element circular antenna-array

A reconfigurable aperture planar array antenna based on separated feeding network

Design of a simple circularly polarised dual‐frequency reconfigurable microstrip patch antenna array for millimetre‐wave applications

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