Area miniaturization of a microstrip patch antenna and the effect on the quality factor Q

Author(s):  
G. A. Mavridis ◽  
C. G. Christodoulou ◽  
M. T. Chryssomallis
2018 ◽  
Vol 1 (1) ◽  
pp. 7-10
Author(s):  
Ayman Al-Sawalha ◽  
Takialddin Al Smadi

In connection with the development of radio communication systems, microwave, millimeter range, one of the most important is the problem of creating compact solid-state radiation sources. The antenna is the effective interaction between electronic circuits and the outside world is an important component of any wireless connection trend toward line the use of high frequencies in modern communications. Solutions, space technology, about (30 Ghz), Local Multipoint Distribution (LMDS) at 28Ghz) antenna technologies to meet the new requirements of the card actively participated in the elaboration of the various subsystems for such active monolithic Phased Array Antenna. This document is primarily.This paper mainly studies the effect of plasma wave on the radiation properties of a conically depressed microstrip patch antenna. Using linearized hydrodynamic theory and potential function technique, the total directive gain and quality factor are calculated for different values of plasma to source frequency and different half-cone angles. It is observed that the directive gain and quality factor are changes considerably by changing the half-cone angle as well as a plasma to source frequency values. © 2018 JASET, International Scholars and Researchers Association. Author Biographies Ayman Al-Sawalha Physics Department, Faculty of Science, Jerash University, Jerash , Jordan Takialddin Al Smadi  Department of Communications and Electronics Engineering, College of Engineering, Jerash University,  Jordan.


Sensors ◽  
2014 ◽  
Vol 14 (1) ◽  
pp. 595-605 ◽  
Author(s):  
Ali Daliri ◽  
Amir Galehdar ◽  
Wayne Rowe ◽  
Sabu John ◽  
Chun Wang ◽  
...  

2021 ◽  
Vol 6 (4) ◽  
Author(s):  
Isiyaku Yau ◽  
Suleiman M. Sani ◽  
Aliyu D. Usman ◽  
Abdoulie M.S. Tekanyi ◽  
Abdulmalik S. Yaro ◽  
...  

Indoor wireless traffic increases exponentially. Radio over fibre technology has been used to provide broadband services in the access network. Plastic Optical Fibre (POF) has been considered as a promising waveguide to be used as backhaul link for indoor access network. The RoF system uses an improved POF cable as a backhaul. A photonic antenna is developed by integrating a microstrip patch antenna with an opto-electronic converter. A standard inset fed microstrip patch antenna used for the wireless transmission and reception is designed using CST software tool. A RoF communication system based on the developed POF is designed and simulated using Optisystem software tool. The Bit Error Rate (BER) performance of the system in terms of Quality factor is evaluated. A maximum achievable POF cable length of 117 m for an On-Off Keying (OOK) transmission data rate of 1 Gbps with an acceptable Quality factor of 7.0 is obtained.  When the developed RoF system was used to transmit 10 Gbps and 50 Gbps data, the achievable cable lengths reduced to 80 m and 63 m, respectively. Keywords— Plastic Optical Fibre, RoF, photonic antenna, and modal dispersion


2013 ◽  
Vol 706-708 ◽  
pp. 64-68 ◽  
Author(s):  
Zhao Xian Xiong ◽  
Guo Feng Zhang ◽  
Hao Xue ◽  
Jin Bao Huang ◽  
Qiang Zheng ◽  
...  

τMicrowave dielectric properties of 0.95MgTiO3-0.05CaTiO3 ceramics and their performances as H-shaped microstrip patch antenna were investigated. Best values of dielectric constant (εr) and quality factor (Q×f) of 19.00 and 66800GHz, respectively, were obtained for the microwave ceramics sintered at 1300°C for 3h. A near-zero temperature coefficient of resonant frequency (τf) of -4.7ppm/°C was obtained for the ceramics with sintering 1280°C for 3h. A new kind of H-shaped microstrip patch antenna with two resonant frequencies was fabricated by using of this kind of ceramics as antenna substrate. The return loss bandwidth of the patch antenna was extended with the increasing of substrate thickness at both resonant frequencies of the antennas, around 1.530GHz and 2.750GHz, respectively.


2012 ◽  
Vol 2 (8) ◽  
pp. 130-133
Author(s):  
Amandeep Singh Amandeep Singh ◽  
◽  
Sankul Agarwal ◽  
Vaibhav Sharma ◽  
Shivam Pandita

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