A frequency and radiation pattern reconfigurable antenna system with sensing capabilities for cognitive radio

2012 ◽  
Author(s):  
Y. Tawk ◽  
C. G. Christodoulou ◽  
J. Costantine ◽  
S. E. Barbin
Keyword(s):  
Cognitive Radio ◽  
Radiation Pattern ◽  
Antenna System ◽  
Reconfigurable Antenna

A compact cognitive radio UWB/reconfigurable antenna system with controllable communicating antenna bandwidth

2019 ◽  
Vol 16 (1) ◽  
pp. 1-11 ◽  
Author(s):  
Abdulghafor Abdulghafar Abdulhameed ◽  
Falih Mahdi Alnahwi ◽  
Husham Lateef Swadi ◽  
Abdulkareem Swadi Abdullah
Keyword(s):  
Cognitive Radio ◽  
Antenna System ◽  
Reconfigurable Antenna

Demonstration of a Cognitive Radio Front End Using an Optically Pumped Reconfigurable Antenna System (OPRAS)

2012 ◽  
Vol 60 (2) ◽  
pp. 1075-1083 ◽  
Author(s):  
Youssef Tawk ◽  
Joseph Costantine ◽  
Sameer Hemmady ◽  
Ganesh Balakrishnan ◽  
Keith Avery ◽  
...  
Keyword(s):  
Cognitive Radio ◽  
Antenna System ◽  
Reconfigurable Antenna ◽  
Optically Pumped ◽  
Front End

A Novel Design of Radiation Pattern-Reconfigurable Antenna System for Millimeter-Wave 5G Applications

2020 ◽  
Vol 68 (4) ◽  
pp. 2585-2592
Author(s):  
Ismail Ben Mabrouk ◽  
Mu'ath Al-Hasan ◽  
Mourad Nedil ◽  
Tayeb A. Denidni ◽  
Abdel-Razik Sebak
Keyword(s):  
Radiation Pattern ◽  
Millimeter Wave ◽  
Antenna System ◽  
Reconfigurable Antenna ◽  
Novel Design

Reconfigurable antenna system with a movable ground plane for cognitive radio

2014 ◽  
Vol 8 (11) ◽  
pp. 858-863 ◽  
Author(s):  
Joseph Costantine ◽  
Youssef Tawk ◽  
Jonathan Woodland ◽  
Noah Flaum ◽  
Christos G. Christodoulou
Keyword(s):  
Cognitive Radio ◽  
Ground Plane ◽  
Antenna System ◽  
Reconfigurable Antenna

A compact omnidirectional to directional frequency reconfigurable antenna for wireless sensor network applications

2021 ◽  
pp. 1-12
Author(s):  
Melvin Chamakalayil Jose ◽  
Radha Sankararajan ◽  
Balakrishnapillai Suseela Sreeja ◽  
Mohammed Gulam Nabi Alsath ◽  
Pratap Kumar
Keyword(s):  
Wireless Sensor Network ◽  
Sensor Network ◽  
Radiation Pattern ◽  
Antenna System ◽  
Wireless Sensor ◽  
Dual Band ◽  
Design Parameters ◽  
Pin Diodes ◽  
Band Frequency ◽  
Directional Radiation

Abstract In the proposed research paper, a novel compact, ultra-wideband electronically switchable dual-band omnidirectional to directional radiation pattern microstrip planar printed rectangular monopole antenna (PRMA) has been presented. The proposed antenna system has an optimum size of 0.26 λ0 × 0.28 λ0. A combination of radiators, reflectors, and two symmetrical grounds does place on the same layer of the rectangular microstrip PRMA. The frequency agility and the radiation pattern from omnidirectional to directional are achieved using two SMD PIN diodes (SMP1340-04LF). The directional radiation patterns with 180° phase shifts are achieved at the C-band frequency spectrum. The parametric study of the proposed antenna system was performed for different design parameters, and the antenna characteristics were analyzed. An antenna prototype is fabricated using the printed circuit board etching method by using RMI UV laser etching and cutting tools. The measurements of the proposed antenna are conducted in an anechoic chamber to validate the simulations. There are three states of operations due to two SMD PIN diodes being used in switching circuits. In state-I, the proposed antenna radiates at 6.185 GHz (5.275–6.6 75 GHz) in the Ф = 270° direction with a gain of 2.1 dBi, whereas in state-II, it radiates at 5.715 GHz (5.05–6.8 GHz) in the Ф = 90° direction with a gain of 2.1 dBi. In state-III, the antenna exhibits the X-band frequency with center frequency at 9.93 GHz (8.845–10.49 GHz), and the omnidirectional pattern offers a gain of 4.1 dBi. The features of the proposed antenna are suitable for high-speed wireless sensor network communication in industries such as chemical reactors in oil and gas and pharmaceuticals. It is also well suited for IoT and 5G-sub-6-GHz applications.

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