Frequency and Pattern Reconfigurable Slot Antenna

Majid, H. A.; Rahim, M. K. A.; Hamid, M. R.; Ismail, M. F.

doi:10.1109/tap.2014.2342237

Cited by 124 publications

(70 citation statements)

References 23 publications

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“…An alternative approach to overcome this constraint is to use a reconfigurable antenna. In general, reconfigurable antennas can be classified into 3 groups, either based on radiation pattern , polarization , or as frequency reconfiguration . Frequency reconfigurable antennas for wideband‐to‐narrowband reconfiguration enables the support of cognitive‐radio system tasks such as searching for spectrum and allocating suitable channels to be used .…”

Section: Introductionmentioning

confidence: 99%

Frequency reconfigurable antenna for WLAN application

Lim

Rahim

Hamid

et al. 2016

Micro & Optical Tech Letters

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This paper presents a frequency reconfigurable antenna fed by a coplanar waveguide (CPW). The antenna is able to switch between narrowband operation, centred at 5.8 GHz, and wideband operation in the range of 3.5 GHz to 5.97 GHz. It consists of an ellipse‐shaped wideband antenna integrated with a bandpass filter for narrowband operation. A pair of rectangular resonators with stubs is implemented at the ground plane to alter the electrical length.When a pair of integrated p‐i‐n diodes are turned OFF, a passband is realized in conjuction with two stopbands to suppress unwanted frequencies. On the other hand, wideband operation is realized when the end of the slot is shorted by eliminating the function of resonator. The overall size of the proposed antenna is 37.8 × 49 mm2, inclusive of the DC biasing circuit. Simulated and measured for radiation pattern and reflection coefficient are carried out to compare the results. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:171–176, 2017

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Section: Introductionmentioning

confidence: 99%

Frequency reconfigurable antenna for WLAN application

Lim

Rahim

Hamid

et al. 2016

Micro & Optical Tech Letters

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“…A reconfigurable antenna is used in various areas of the modern telecommunication system as a solution to increase the channel capacity and reduce the radio frequency (RF) components in limited environments . In general, reconfigurable properties can be classified as the frequency (eg, operating frequency, frequency bandwidth), radiation pattern (eg, radiation shape, gain), and polarization (eg, horizontal or vertical, left‐hand or right‐hand circular polarization) .…”

Section: Introductionmentioning

confidence: 99%

Liquid‐metal‐fluidically polarization reconfigurable microstrip patch antenna

Lee

Son

Lim

et al. 2019

Micro & Optical Tech Letters

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In this article, we propose a liquid‐metal‐fluidically polarization reconfigurable microstrip patch antenna. The edge‐truncated patch is designed to generate circular polarization (CP), and two microfluidic channels are designed for the polarization reconfigurability. Therefore, the polarization of the proposed antenna is switched to linear polarization (LP) from the CP when the liquid metal is injected on the microfluidic channels. The microfluidic channels are fabricated on the polydimethylsiloxane (PDMS) material, and eutectic gallium‐indium (EGaIn) is used as the liquid metal. The performance of the proposed antenna is numerically and experimentally demonstrated. The measured 10‐dB impedance bandwidth is 1.579‐1.619 GHz and 1.563‐1.587 GHz for the CP and LP modes, respectively. At the CP mode, the measured axial ratio (AR) and RHCP gain at 1.595 GHz are 2.267 dB and 6.59 dBic, respectively. At the LP mode, the measured AR and peak gain at 1.585 GHz are 12.335 dB and 5.18 dBi, respectively.

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“…In [11], Huff presents a pattern-and frequency-reconfigurable microstrip antenna using a small number of switches. In [12], a frequency-and patternreconfigurable slot antenna is proposed. In [13], the reconfigurable antenna can switch their operation between a patch broadside pattern and a monopole omnidirectional pattern using PIN diodes.…”

Section: Introductionmentioning

confidence: 99%

Design of Frequency- and Pattern-Reconfigurable Wideband Slot Antenna

Han

Wang

Zhang

et al. 2018

International Journal of Antennas and Propagation

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A wideband slot antenna with frequency-and pattern-reconfigurable characteristics for TD-LTE (3.4-3.8 GHz) and C-band (3.7-4.2 GHz) applications is proposed. The antenna consists of two symmetric slots that are fed by a fork-shaped microstrip line. Two PIN diodes are loaded in the slots to produce two different frequency bands. Meanwhile, two additional PIN diodes are inserted in the feed line to achieve the pattern reconfigurability. The wideband operation is realized by using the symmetric slots and fork-shaped feed line. Simulated and measured results show that the antenna provides 25°and 20°beam-steering in 3.4-3.8 and 3.7-4.2 GHz bands, respectively. Also, an impedance bandwidth of at least 12.8% is obtained in the operating bands.

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Frequency and Pattern Reconfigurable Slot Antenna

Cited by 124 publications

References 23 publications

Frequency reconfigurable antenna for WLAN application

Frequency reconfigurable antenna for WLAN application

Liquid‐metal‐fluidically polarization reconfigurable microstrip patch antenna

Design of Frequency- and Pattern-Reconfigurable Wideband Slot Antenna

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