Design and Implementation of an Integrated UWB/Reconfigurable-Slot Antenna for Cognitive Radio Applications

Erfani, Elham; Nourinia, Javad; Ghobadi, Changiz; Niroo-Jazi, Mahmoud; Denidni, Tayeb A.

doi:10.1109/lawp.2011.2182631

Cited by 92 publications

(68 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this regard, various tunable band-notched UWB antennas have been reported over the last decade [14][15][16][17][18][19][20][21][22][23]. These UWB antennas actually implement the strategy of PIN diodes, shorting circuits, microelectromechanical switches (MEMS), stepper motors, and optically controlled switching techniques.…”

Section: Related Workmentioning

confidence: 99%

Ompact CPW Fed Switchable Uwb Antenna as an Antenna Filter at Narrow-Frequency Bands

Nejatijahromi¹,

Naghshvarianjahromi²,

Rahman³

2018

PIER C

View full text Add to dashboard Cite

Abstract-The aim of this paper is to present a compact coplanar waveguide (CPW) fed switchable UWB antenna as an antenna filter with adjustable notched frequency bands. Novel miniaturized tunable resonators are also presented to achieve notched bands. The antenna is made tunable in notched frequency bands without any modification in the basic structure. These stopbands are made tunable just by varying values of the capacitors according to our desired applications. The antenna structure is very compact having overall dimensions of 24 × 30.5 mm 2 with partial ground plane. The proposed small size, variable, low cost and low weight antenna with good propagation characteristics will pave the way for UWB wireless communication applications.

show abstract

Section: Related Workmentioning

confidence: 99%

Ompact CPW Fed Switchable Uwb Antenna as an Antenna Filter at Narrow-Frequency Bands

Nejatijahromi¹,

Naghshvarianjahromi²,

Rahman³

2018

PIER C

View full text Add to dashboard Cite

show abstract

“…The second mechanism is found useful for wideband and ultra-wideband frequency reconfigurations. In [22], an optimized slot resonator integrated with a varactor diode is incorporated in the radiator to obtain the ultra-wideband to narrowband tunable frequency reconfigurability. In [23], pin diode integrated slot resonators are embedded in the ground plane to achieve the ultra-wideband to narrowband frequency reconfiguration.…”

Section: Introductionmentioning

confidence: 99%

Modeling of a PIN Diode RF Switch for Re configurable Antenna Application

2018

View full text Add to dashboard Cite

The paper proffers the procedure to model a PIN diode RF switch using full-wave EM solver, HFSS and utilizes the switch to built a simple partial ground plane antenna with omnidirectional radiation pattern. The proposed antenna has ability to tune it from ultra-wideband to narrowband mode. The frequency reconfigurability is accomplished by incorporating a rectangular slot resonator and a PIN diode RF switch embedded in the partial ground plane. The antenna demonstrates -10 dB impedance bandwidth from 500 MHz to 6 GHz in the ultra-wideband mode and 1.125 GHz to 2 GHz in the narrowband mode. A parasitic is stacked in the ground plane to improve the impedance matching and a rectangular slot is fused to explore the bandwidth-limiting possibility of the antenna. The optimization of the antenna is done by full-wave EM solver, HFSS and Specific Absorption Rate (SAR) of the antenna is examined using the equivalent flat tissue phantom. A prototype of the proposed antenna is fabricated and execution is accepted by measured results. The proposed antenna has simple and miniature structure, low SAR (0.41 W/Kg), omnidirectional pattern and low cross-polarization (<-15dB in E-plane and <-30dB in H-plane).

show abstract

“…For example, [2,3] proposed antennas for ground penetrating radar (GPR) applications. In [4], the authors propose some applications of UWB technology like radio frequency identity tags, impulse radar and position finders. Variable antennas can resolve the demands of complex systems without any change in the shape or electrical behavior.…”

Section: Introductionmentioning

confidence: 99%

Switchable Planar Monopole Antenna Between Ultra-Wideband and Narrow Band Behavior

Nejatijahromi¹,

Naghshvarianjahromi²,

Rahman³

2018

PIER Letters

View full text Add to dashboard Cite

Abstract-In this paper, we propose a novel compact switchable monopole CPW-fed antenna which has the ability to be used for narrowband as well as UWB applications. A single element antenna to be used for wireless local area network (WLAN) applications is first proposed in this article having overall dimensions of 24 × 30.5 mm 2 . The corresponding antenna has been transformed to UWB frequency range just by utilizing two variable capacitors within the designed structure. The proposed small size, variable, low cost as well as low weight antenna with good propagation characteristics performs well in the WLAN as well as in the UWB frequency band. The proposed antenna is simulated using Ansoft HFSS, and results are validated in CST Microwave Studio suite. The proposed antenna has also been fabricated, and the measured response is correlated with the simulated ones.

show abstract

Design and Implementation of an Integrated UWB/Reconfigurable-Slot Antenna for Cognitive Radio Applications

Cited by 92 publications

References 6 publications

Ompact CPW Fed Switchable Uwb Antenna as an Antenna Filter at Narrow-Frequency Bands

Ompact CPW Fed Switchable Uwb Antenna as an Antenna Filter at Narrow-Frequency Bands

Modeling of a PIN Diode RF Switch for Re configurable Antenna Application

Switchable Planar Monopole Antenna Between Ultra-Wideband and Narrow Band Behavior

Contact Info

Product

Resources

About