Frequency-tunable open-ring microstrip antenna using varactor

Oh, Seungmin; Jung, Young‐Bae; Ju, Young-Rim; Park, H.-D.

doi:10.1109/iceaa.2010.5652325

Cited by 19 publications

(11 citation statements)

References 3 publications

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“…Reconfigurable antennas resorting to PIN diodes (Chen et al 2007;Chen and Row 2008;Kim et al 2008;Wu and Ma 2008;Sarrazin et al 2009;Shelley Perruisseau-Carrier et al 2010;Piazza et al 2010;Qin et al 2010b;Quin et al 2012;Hinsz and Braaten 2014) have a more dynamic reconfiguration capability. Other reconfigurable antennas resort to the use of varactors (Daviu et al 2007;Jeong et al 2008;Yang et al 2008;Jiang et al 2009;Oh et al 2010;Tawk et al 2012a;Bai et al 2013;Onodera et al 2013;Ramadan et al 2014) where varying the biasing voltage can result in varying the capacitance of the corresponding varactor. Such antennas enjoy a wide tuning ability that is based on integrating a variable capacitance into the antenna structure.…”

Section: -Group 4: Antennas With Hybrid Reconfiguration Techniquesmentioning

confidence: 99%

Reconfigurable Antennas and Their Applications

Costantine¹,

Tawk²,

Christodoulou³

2015

Handbook of Antenna Technologies

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In this chapter, a summary of the various components, categorization, and design process of reconfigurable antennas is presented. The various applications where reconfigurable antennas have been implemented and the association of various antenna properties with new communication applications are discussed. The chapter takes into consideration new and evolving applications and associate novel antenna designs with these applications. The control, modeling, and optimization of reconfigurable antennas are also detailed and multiple mechanisms are presented. Finally this chapter emphasizes on the development of reconfigurable antennas to service futuristic and evolving practical wireless communication applications and propose optimal solutions for more efficient and holistic designs.

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Section: -Group 4: Antennas With Hybrid Reconfiguration Techniquesmentioning

confidence: 99%

Reconfigurable Antennas and Their Applications

Costantine¹,

Tawk²,

Christodoulou³

2015

Handbook of Antenna Technologies

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“…Several authors have achieved frequency reconfigurability by adjusting the effective length of an antenna either by adding or removing part of its length through the use of different methods such as radio frequency microelectromechanical system (RF‐MEMS) for frequency tuning [8–10]. The use of varactor diodes for redirecting surface currents, thereby allowing smooth frequency change with change in capacitance, has been reported in [11], and the use of radio frequency PIN diode (RF‐PIN) diodes for tuning frequency bands in [12–15]. Antenna frequency reconfigurability using RF‐MEMS exhibits lower loss and higher Q factors in comparison with varactor and PIN diodes [16].…”

Section: Introductionmentioning

confidence: 99%

“…The use of varactor diodes for redirecting surface currents, thereby allowing smooth frequency change with change in capacitance, has been reported in [11], and the use of RF PIN diodes for tuning frequency bands in [12][13][14][15]. Antenna frequency reconfigurability using RF-MEMS exhibits lower loss and higher Q factors in comparison with varactor and PIN diodes [16].…”

Section: Introductionmentioning

confidence: 99%

Design of frequency reconfigurable multiband compact antenna using two PIN diodes for WLAN/WiMAX applications

Abdulraheem

Oguntala

Abdullah

et al. 2017

IET Microwaves, Antennas & Propagation

127

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Accepted to IET MAP Journal Feb 2017 Design of Frequency Reconfigurable Multiband Compact Antenna using two PIN diodes for WLAN/WiMAX Applications Abstract:In this paper, we present a simple reconfigurable multiband antenna with two PIN diode switches for WiMAX/WLAN applications. The antenna permits reconfigurable switching in up to ten frequency bands between 2.2 GHz and 6 GHz, with relative impedance bandwidths of around 2.5% and 8%. The proposed antenna has been simulated using CST microwave studio software and fabricated on an FR-4 substrate. It is compact, with an area of 50 × 45 mm 2 , and has a slotted ground substrate. Both measured and simulated return loss characteristics of the optimized antenna show that it satisfies the requirement of 2.4/5.8 GHz WLAN and 3.5 GHz WiMAX antenna applications. Moreover, there is good agreement between the measured and simulated result in terms of radiation pattern and gain.

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“…A popular approach to achieve bandwidth or frequency reconfiguration is that of using switches to alter the geometry/current flow of the antenna itself [24,25]. This approach relies on many different technologies including RF-MEMS [26][27][28][29][30][31][32], pin diodes [33,34], varactors [35][36][37], and optical switches [38,39]. The use of frequency selective surfaces for reconfiguration and/or enhancing antenna bandwidth has also been pursued [40].…”

Section: Introductionmentioning

confidence: 99%

Bandwidth Reconfigurable Metamaterial Arrays

Smith

Papantonis

Volakis

2014

International Journal of Antennas and Propagation

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Metamaterial structures provide innovative ways to manipulate electromagnetic wave responses to realize new applications. This paper presents a conformal wideband metamaterial array that achieves as much as 10 : 1 continuous bandwidth. This was done by using interelement coupling to concurrently achieve significant wave slow-down and cancel the inductance stemming from the ground plane. The corresponding equivalent circuit of the resulting array is the same as that of classic metamaterial structures. In this paper, we present a wideband Marchand-type balun with validation measurements demonstrating the metamaterial (MTM) array’s bandwidth from 280 MHz to 2800 MHz. Bandwidth reconfiguration of this class of array is then demonstrated achieving a variety of band-pass or band-rejection responses within its original bandwidth. In contrast with previous bandwidth and frequency response reconfigurations, our approach does not change the aperture’s or ground plane’s geometry, nor does it introduce external filtering structures. Instead, the new responses are realized by making simple circuit changes into the balanced feed integrated with the wideband MTM array. A variety of circuit changes can be employed using MEMS switches or variable lumped loads within the feed and 5 example band-pass and band-rejection responses are presented. These demonstrate the potential of the MTM array’s reconfiguration to address a variety of responses.

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Frequency-tunable open-ring microstrip antenna using varactor

Cited by 19 publications

References 3 publications

Reconfigurable Antennas and Their Applications

Reconfigurable Antennas and Their Applications

Design of frequency reconfigurable multiband compact antenna using two PIN diodes for WLAN/WiMAX applications

Bandwidth Reconfigurable Metamaterial Arrays

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