Multi-band reconfigurable antennas embedded with lumped-element passive components and varactors

Onodera, Shoichi; Ishikawa, Ryo; Saitou, Akira; Honjo, Kazuhiko

doi:10.1109/apmc.2013.6695216

Cited by 14 publications

(2 citation statements)

References 4 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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“…Various switching techniques are employed for reconfiguration that are provided by devices such as PIN diode, varactor diode, MEMS switched and photoconductive switches 6 . Reconfigurable antenna design with PIN diode and varactor diode requires external cable connection to provide DC bias to the lumped elements 7 . Though the MEMS switches provides high isolation between the lumped elements and DC biasing circuitry, the switching speed is very low compared to other switching mechanism 8 .…”

Section: Introductionmentioning

confidence: 99%

Internet of Things Controlled Reconfigurable Antenna for RF Harvesting

Vijayan

lR²

2018

Def. Sc. Jl.

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Internet of Things (IoT) controlled a reconfigurable antenna with PIN diode switch for modern wireless communication is designed and implemented. Direct contact of biasing network with the antenna is eliminated and the switching unit is manipulated through IoT method. The proposed antenna has ring structures, in which the outer ring connects the inner ring structure through a PIN diode switch. The dimension of the proposed antenna is reported as 50 mm × 50 mm and its prototype has been made-up on epoxy-Fr4 substrate with 1.6 mm thickness. This antenna setup is made to reconfigurable in four bands (4.5 GHz, 3.5 GHz, 2.4 GHz, and 1.8 GHz) through switching provided by IoT device (NodeMCU). The antenna has a good return loss greater than -10dB.In switching state 2 the antenna has a return loss of -30 dB peak is attained at 3.4 GHz of operating frequency. Similarly the gain response of antenna is good in its operating bands of all switching states and obtained a maximum gain of 2.7 dB in 3.5 GHz. Bidirectional radiation pattern is obtained in all switching states of the antenna.

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