A millimeter-wave pattern-reconfigurable antenna with a reconfigurable feeding network

Ding, Xiao; Wang, Bing‐Zhong

doi:10.1080/09205071.2013.759520

Cited by 11 publications

(4 citation statements)

References 21 publications

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“…Different techniques have been used to achieve multi-band operation for MSA. Some of the techniques employed variation in physical dimensions of feed line, modification of the effective length of antenna using slot, implementation of defected ground structure and use of the switching device within the antennas [15][16][17].…”

Section: Mems Rf Switches Demonstrate Exceptional Performance In Uppementioning

confidence: 99%

Micro-Switch Design and Its Optimization Using Pattern Search Algorithm for Application in Reconfigurable Antenna

Chawla¹,

Anand²

2017

Modern Antenna Systems

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This chapter reports the design and optimization algorithm of metal-contact RF microswitch. Various important evolutionary optimization techniques that can be used to optimize non-linear and even non-differentiable types of radio frequency (RF) circuit's problems are also reviewed. The transient response of the proposed switch shows displacement time (i.e., squeezed-film damping effect) of 5.0 μs and pull-in voltage varying from 9.0 to 9.25 V. Primarily, the switch exhibits insertion loss of 0.15 to 0.51 dB in on-position and isolation of 75.96 to 35.83 dB in off-position at 0.1-10 GHz. Also, the proposed RF switch equivalent circuit and layout are validated in ADS software which was earlier simulated in HFSS. A pattern search (PS) algorithm is used to optimize RF characteristics of the proposed switch after a brief review of the different optimization techniques. After optimization, the switch shows decrement in insertion loss and increment in isolation at 0.1-10 GHz. Further, two such optimized switches are introduced on the defected ground structure (DGS) antenna to make it reconfigurable in terms of frequency. Reconfigurable antenna (RA) is simulated using HFSS software and simulation results are verified by showing the mark of agreement with the fabrication results. The novelty in the proposed design is due to dual-band behavior and better resonance performance than antennas available in the literature. Attractions of proposed RA are its miniaturization and its utility in IEEE US S-(2.0-4.0 GHz) and C-(4.0-8.0 GHz) band.

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Section: Mems Rf Switches Demonstrate Exceptional Performance In Uppementioning

confidence: 99%

Micro-Switch Design and Its Optimization Using Pattern Search Algorithm for Application in Reconfigurable Antenna

Chawla¹,

Anand²

2017

Modern Antenna Systems

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“…Although the millimeter-wave band has drawbacks like atmospheric attenuation and shorter wavelength leading to smaller range, frequency bands have been identified at 28,38 and 60 GHz to support the new technologies [2], [3]. Several new antenna systems such as phased array antennas [4]- [8], Butler matrix [9]- [11], metamaterial-based antennas [12], [13], antennas coupled with dielectric structures for near field phase transformation [14], electronic band-gap based resonator antennas [15], [16] and antennas coupled with reconfigurable frequency selective surface screens [17]- [19] operating at millimeter-wave have been developed over the past decade employing beamforming and multiple-input-multiple-output (MIMO) techniques to enable 5G mobile communications [20]. But most of the proposed work in the literature requires bulky and expensive phase shifters, have complex control units, or require some mechanical movement to operate which can potentially make them costly and difficult to manufacture.…”

Section: Introductionmentioning

confidence: 99%

Millimeter-Wave Beam Steerable Slot Array Antenna Using an Inter-Digitated Capacitor Based Corrugated SIW

Bansal

Panagamuwa

Whittow

2022

IEEE Trans. Antennas Propagat.

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A new class of electronically beam-steerable corrugated substrate integrated waveguide (CSIW) slot array antenna operating at 26 -29 GHz has been developed. The conventional via based walls of SIWs or stub-based walls of CSIWs have been replaced with an inter-digitated capacitor (IDC) structure to enable reconfigurability. This novel IDC-CSIW is shown to have a lower transmission loss compared with conventional CSIWs in the literature. A new mathematical method has been described to calculate the cut-off frequency of CSIWs. The surface of the IDC-CSIW is then loaded with longitudinal slots, building a leaky-wave architecture. Radiation from individual slots is controlled by shorting the IDC at specific points using PIN diodes. The antenna is fed at either end using a singlepole-double-throw (SPDT) switch to achieve a 2D reconfigurable beam. A compact switched array of two IDC-CSIWs is demonstrated to produce a continuous full sector coverage of 120° in the azimuth plane, and ±15° in the elevation plane, providing a 2D beam-steer with a stable gain of ~13.5 dBi and an efficiency greater than 80%.

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“…To reconfigure different patterns, several architectures have been proposed. These include changing the inner structure of radiators [5], exploiting parasitic elements [6], or even modifying feeding networks [7][8][9]. In recent years, several novel simplified methods have attracted considerable attention.…”

Section: Introductionmentioning

confidence: 99%

Effective approach for pattern synthesis of sparse reconfigurable antenna arrays with exact pattern matching

Shen

Wang

2016

IET Microwaves, Antennas & Propagation

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An effective approach is presented for pattern synthesis of reconfigurable antenna arrays with non‐uniformly spaced arrangements. On the basis of the joint sparse model of multiple reference patterns, the proposed approach can dynamically reconfigure multiple radiation patterns with exactly matched pattern details and minimum number of antenna elements by joint optimisation of element positions and excitations. In this study, the design of sparse reconfigurable arrays is recast as a simultaneous sparse approximation problem and solved with the multi‐task Bayesian compressive sensing. The common element positions and individual element excitations for multiple radiation patterns are obtained simultaneously by searching out multiple weight vectors sharing the same prior probability. Several representative experiments are provided to validate the effectiveness of the proposed method for the design of maximally sparse reconfigurable antenna arrays with exact pattern matching.

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A millimeter-wave pattern-reconfigurable antenna with a reconfigurable feeding network

Cited by 11 publications

References 21 publications

Micro-Switch Design and Its Optimization Using Pattern Search Algorithm for Application in Reconfigurable Antenna

Micro-Switch Design and Its Optimization Using Pattern Search Algorithm for Application in Reconfigurable Antenna

Millimeter-Wave Beam Steerable Slot Array Antenna Using an Inter-Digitated Capacitor Based Corrugated SIW

Effective approach for pattern synthesis of sparse reconfigurable antenna arrays with exact pattern matching

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