Reconfigurable dual-band dipole antenna on silicon using series MEMS switches

Kiriazi, J.; Ghali, Hani A.; Ragaie, H.F.; Haddara, H.

doi:10.1109/aps.2003.1217482

Cited by 49 publications

(32 citation statements)

References 8 publications

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“…However, if frequency shifting is compared with other researches, it shows significant result. As the research conducted by Kiriazi et al [6], showed that the antenna that switched by using RF-MEMS operate in dual frequencies and have shifting frequencies 20 MHz for first frequency and 260 MHz for second frequency. In another research [7], where the antenna switched by using varactor diode, achieve dual frequency shifting 357 and 126 MHz.…”

Section: Resultsmentioning

confidence: 99%

“…However, using silicon as photoconductive switches will require complicated technique during it insertion process on antenna substrate and silicon has high cost. Other techniques, is done previously by Kiriazi et al in [6]. In this work, open and short of RF-MEMS switches were assembled on antenna which has a high-resistivity silicon substrate.…”

Section: Introductionmentioning

confidence: 99%

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Optically Switched Frequency for Reconfigurable Dipole Antenna Using Photodiode Switches

2016

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The design, fabrication, and measurement of reconfigurable antenna using photodiode switches have been investigated. The IntroductionAntenna is a basic component in communication system. It is very important and needed in communication system, specifically wireless communication system which has been running remarkably and dynamic. It causes the increase demand of antennas. Communication system which is generally complex needs antennas which have advance capabilities and good performances. So, many researchers have conducted experiments attempting to improve capabilities and performances of antenna in order to meet the need of communication system which grows continuously.One type of antenna which is able to accommodate the change of communication system necessity is reconfigurable antenna [1]. Such an antenna is able to adjust with the necessity of the communication system. In some ways it can convert operating frequency, radiation pattern, impedance, bandwidth via shorting/reactive loading to require resonant mode switching, by moving part (mechanical reconfiguration), optical switching, electronic switching, and feed network switching. Due to the fact that reconfigurable antenna adjustable, this antenna can eliminate the need of multiple antenna for communication systems.An innovative approach to the synthesis of phase-only reconfigurable, isophoric linear sparse arrays has been investigated in previous research [2]. The result shows the abilility to commute their pattern within an arbitrary number of radiation modalities which leads to an effective procedure for the fast antennas design with high performance. In other research, presenting at [3][4][5], mentioned that reconfigurable antenna were fabricated on high-resistivity silicon and equipped with two silicons as material switches. Then the laser was used to control the photoconductive switching material. The technique is conducted to prove that changes of effective length of antenna, it can change antenna resonance frequency. However, using silicon as photoconductive switches will require complicated technique during it insertion process on antenna substrate and silicon has high cost. Other techniques, is done previously by Kiriazi et al. in [6]. In this work, open and short of RF-MEMS switches were assembled on antenna which has a high-resistivity silicon substrate. In [7], varactor diode is used as switches. The other switching elements which are PIN diodes [8][9][10][11][12][13], an air gap [14][15], solar cell [16], and photodiode [17] have also been used at previous research. Therefore, in this paper we introduce a new optical switches geometry and technique of reconfigurable antennas by using photodiode as optical switching.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optically Switched Frequency for Reconfigurable Dipole Antenna Using Photodiode Switches

2016

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“…reconfigurable antenna of multi-band and multi-mode can replace multiple antennas based on one vehicle,decreases the developing cost,space and weight of 1 …”

Section: Introductionmentioning

confidence: 99%

“…The reconfigurable antennas contain defferent types:frequency reconfigurable,radiation pattern reconfigurable, frequency and pattern reconfigurable,polarization reconfigurable,and so on. 1,2 In recent years,with development of MEMS technology,especially developing of MEMS switches of high performance and low power cost,reseach on the reconfigurable antennas is deepened, technology concerned with the reconfigurable antennas is studyed by scholars at home and abroad. [3][4][5][6] MEMS switches have much excellent radio frequency performance,such as small size, low conducting insertion loss within broad bandwidth,high disconnecting isolation and low parasitic capacitance.…”

Section: Introductionmentioning

confidence: 99%

Design and simulation of pattern reconfigurable antenna based on RF-MEMS

Li¹

2012

SpaceOps 2012 Conference

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Abstract：The reconfigurable antenna based on RF-MEMS is hot researching direction in recent years,it can change electric parameters,such as radiation pattern,working band, input impedance, polarization diversity ,and so on. reconfigurable antenna of multi-band and multi-mode can replace multiple antennas based on one vehicle,decreases the developing price,size and weight of antennas,which is very important to the satellite communication and wireless communication. This paper presents the design of a broadband and wide-angle pattern reconfigurable antenna. The antenna is composed of four different linear phased arrays, in which the element is designed with different phase shift. The pattern of the whole antenna can be changed by six RF-MEMS switches, which are placed in the feed network. The feed network uses a novel compact broadband impedance transformer, and the microstrip slot antenna acts as an antenna element. The VSWR(Voltage Standing-Wave Ratio) of the antenna element in a broadband from 2.4 GHz to 3.4 GHz is less than 2. The simulation result demonstrates that the reconfigurable antenna realizes different patterns(0°,25°,40°and 50°) in different RF-MEMS switching states, furthermore, theVSWR of the reconfigurable antenna under each of these four different states is less than 2 from 2.5 GHz to 3.25 GHz except for part frequency points.The paper has important value to the design of beam scanning of phased array antenna in satellite communication.

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“…Dynamically, modifications of antenna radiation characteristics, such as resonance frequency, bandwidth, radiation pattern, and polarization, are the major advantages of reconfigurable antennas over traditionally fixed operating antennas [1,2]. Design methodology of these antennas encounters some challenges.…”

Section: Introductionmentioning

confidence: 99%

A Novel Reconfigurable Spiral-Shaped Monopole Antenna for Biomedical Applications

Salim¹,

Pourziad²

2015

PIER Letters

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Abstract-In this paper, a new reconfigurable antenna is introduced. This antenna is a printed spiralshaped monopole antenna with a compact structure. By embedding microwave switches in the structure of the antenna, different resonance frequencies can be achieved in different states of the switches. The introduced antenna is capable to cover two standard frequency bands for biomedical applications, i.e., Medical Implant Communication Service (MICS) and Industrial, Scientific and Medicine (ISM) bands. MICS band covers 402 MHz to 406 MHz and ISM covers 2.4 GHz to 2.5 GHz frequency range. The proposed antenna has a compact size of 32 mm × 50.3 mm × 1.8 mm, and it is fabricated on an FR4 substrate. The measurement results are in a good agreement with the simulations.

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Reconfigurable dual-band dipole antenna on silicon using series MEMS switches

Cited by 49 publications

References 8 publications

Optically Switched Frequency for Reconfigurable Dipole Antenna Using Photodiode Switches

Optically Switched Frequency for Reconfigurable Dipole Antenna Using Photodiode Switches

Design and simulation of pattern reconfigurable antenna based on RF-MEMS

A Novel Reconfigurable Spiral-Shaped Monopole Antenna for Biomedical Applications

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