An integrated narrowband-wideband antenna

Aly, Mostafa G.; Wang, Yi

doi:10.1109/lapc.2013.6711936

Cited by 4 publications

(2 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Another UWB/NB antenna combination is presented where the ultrawideband response is attained by a monopole antenna with a microstrip feeding mechanism. The reconfigurability is attained by cascaded split-ring resonators in the feedline using 7 PIN diode switches [25]. An Archimedean spiral antenna with a coplanar waveguide fed slot is reported in [26].…”

Section: Reconfiguration Techniques For Cognitive Radiomentioning

confidence: 99%

Antenna Reconfiguration Techniques for Cognitive Radio: A Review

Cleetus

Bala

2020

Walailak J Sci & Tech

View full text Add to dashboard Cite

As the usage of wireless communicative devices is multiplying day by day, the need for the occupiable radio spectrum is also increasing. The inefficiency in the exploration of available licensed radio spectrum has rerouted the focus to effectively use it against the increasing demand. One of the available methods is to implement Cognitive Radio (CR) technology. The Cognitive Radio uses 2 antennas at a time in order to scan and to communicate with the available spectrum. While an Ultrawideband (UWB) antenna scans the spectrum for unused bands of frequencies, Narrowband (NB) antennas communicate with these sensed unused bands. The technique of Reconfiguration in antennas is found to have a major role in implementing these UWB/NB antennas for CRs. Here in this paper, a survey is conducted on various reconfiguration techniques in antennas to build up a CR system. Each technique is studied in terms of the compactness, novelty, coverage of frequencies, and losses associated with the antenna. Finally, all the techniques are compared on the basis of their merits and demerits in this work.

show abstract

Section: Reconfiguration Techniques For Cognitive Radiomentioning

confidence: 99%

Antenna Reconfiguration Techniques for Cognitive Radio: A Review

Cleetus

Bala

2020

Walailak J Sci & Tech

View full text Add to dashboard Cite

show abstract

“…The second category presents a single frequency reconfigurable UWB/NB antenna realized from a single port, with an appropriate switching technique to switch between the UWB and NBs. [11][12][13] The third category introduces dual-port integrated designs, where a UWB antenna and a frequency reconfigurable NB antenna are integrated onto the same substrate. [14][15][16] The frequency reconfigurable mechanism mentioned in all the above categories are having certain limitations such as the non-linearity of switches, need of biasing lines, mutual coupling from the biasing lines, the complexity of circuitry with the incorporation of switches, power consumption, additional biasing circuits, motors for rotational motion in certain cases, practical implementation difficulties, larger dimensions, etc.…”

Section: Introductionmentioning

confidence: 99%

A multi‐port, narrow‐wide band achievable, reconfigurable antenna for cognitive radios

Cleetus

Bala

2022

Int J RF Mic Comp-Aid Eng

View full text Add to dashboard Cite

This paper aims to propose a 4-port integrated antenna system that is capable of exhibiting ultra wideband (UWB) and narrowband (NB) characteristics using excitation switching reconfiguration. In line with the requirements of the Cognitive Radio (CR), the UWB functionality makes the antenna capable of spectrum sensing and the NB feasibility allows the antenna to communicate with the spectrum. The proposed antenna is having a compact dimension of 40 mm Â 35 mm Â 1.6 mm and is printed on FR4 substrate with relative permittivity of 4.4. The antenna performance is analyzed as 3 scenarios. In all three, the antenna is found to cover the entire UWB spectrum approved by the federal communications commission (FCC), from 3.1 to 10.6 GHz. In addition to the UWB characteristics, each scenario provides at least one NB characteristic. In Scenario 1, the NB antenna 1 provides coverage from 6.87 to 8.67 GHz whereas, in Scenario 2, the NB antenna 2 provides dual-band coverage from 2.99 to 4.27 GHz and 8.47 to 11.40 GHz. In Scenario 3, the NB antenna 3 operates in a single band from 4.09 to 7.09 GHz. Isolation between the antennas is found to be less than À15.9 dB in all the Scenarios. The lumped equivalent models of NB antennas are simulated and optimized in Applied Wave Research (AWR) software to match the antenna S-parameters at their resonance frequencies. The simulated and measured results are in good agreement.The comparative analysis of the antenna with the previous works in the same area is also included in this paper.

show abstract