International Research journal of Management Science and Technology

  ISSN 2250 - 1959 (online) ISSN 2348 - 9367 (Print) New DOI : 10.32804/IRJMST

Impact Factor* - 6.2311


**Need Help in Content editing, Data Analysis.

Research Gateway

Adv For Editing Content

   No of Download : 166    Submit Your Rating     Cite This   Download        Certificate

SOME STUDIES ON THE EFFECT OF WARM IONIZED PLASMA MEDIUM ON RADIATION PROPERTIES OF FOUR ELEMENTS MICROSTRIP ANTENNA ARRAY PRINTED ON FERRITE SUBSTRATE

    1 Author(s):  DR. DINESH SHARMA

Vol -  9, Issue- 8 ,         Page(s) : 82 - 89  (2018 ) DOI : https://doi.org/10.32804/IRJMST

Abstract

The Purpose of this paper reports theoretical work carried out to investigate the radiation properties of four element microstrip antenna printed upon a typical ferrite substrate Ni1.062 Co0.o2Fe1.948O4 by considering the presence of dc magnetic bias field normal to the direction of propagation of electromagnetic waves. In loss-less isotropic warm plasma, this array antenna geometry excites both electromagnetic (EM) and electroacoustic plasma (P) waves in addition to nonradiating surface waves. In the absence of an external magnetic field, the EM - mode and P-mode can be decoupled into two independent modes, the electoacoustic mode is longitudinal while the electromagnetic mode is transverse. Far zone electromagnetic mode and plasma mode radiation fields are derived using vector wave function technique and pattern multiplication approaches. The results are obtained in both plasma medium and free space .Some important antenna parameters such as radiation patterns, radiation conductance and directivity are plotted for different values of plasma to source frequency.

(1) I.J. Bahl and P. Bhartia, "Microstrip Antenna,Artech House,London,1 980.   
 (2) K.R Carver and J.W Mink, IEEE Trans. Antenna and Propagation AP-29,2 (1981).
(3) C.A. Balanis, Antenna Theory Analysis and Design, John Willy and Sons, New York, 1982. 
(4) C.M. Krowne, Dielectric and width effect on H-plane and E-plane coupling between rectangular microstrip antennas, IEEE Trans Antenna and Propagate. Vol. 31, pp. 39-47,1983.     
(5) D.M. Pozar and V.Sanches, "Magnetic tuning of microstrip antenna on ferrite substrate", Electron.Lett. vol.24, pp.729-731, 1988.  
(6) D.M. Pozar, "Radiation and scattering characteristics of microstrip antennas on normally biased ferrite substrate", IEEE Trans. Antennas Propagat., vol. 40, no. 9, pp. 1084-10992, 1992. 
(7) H.Y.D. Yang, Characteristics of switchable ferrite microstrip antenna', IEEE Trans. Antenna Propag., vol.44, no.8, pp.1127-1132, 1996. 
(8) D.M. Pozar, "Microwave Engineering", Addison Wesley Publishing Company,Reading, MA, 1996.        
(9) Li. Zhifang, J.L. Volakis, "Optimization of patch antennas on ferrite substrate using the finite element methods", Proc. of the 1988 IEEE Antenna and Prop. Society Int.S ymposium, Atlanta, Georgia, vol.1, pp. 244-247, 1998.   
(10) k.K. Verma and K.R. Soni, "Theoretical study of two element array of equilateral triangular microstrip antenna on ferrite", Pramana J.of Phys., vol.65, No. 3, 2005.   

*Contents are provided by Authors of articles. Please contact us if you having any query.






Bank Details