Title :
Measurement of effective dielectric constant : A comparison
Author :
Aakashdeep ; Basu, S.K. ; Ujjwal, G.V. ; Kumari, Smriti ; Gupta, V.R.
Author_Institution :
Dept. of Electron. & Commun. Eng., Birla Inst. of Technol., Mesra, India
Abstract :
This paper deals with two methods and their comparison to find the effective relative permittivity of the substrate. The two methods used are resonant method and reflection method in the planar configuration. In resonant method, a microstrip patch antenna is designed using the approximate value of the relative dielectric permittivity. The resonant frequency of the designed antenna is measured and then effective relative permittivity is calculated. In the second method, the two transmission line method is used to find the relative dielectric permittivity. The comparison of the two methods shows that resonant method is more efficient at a particular frequency whereas transmission line method is suitable to find the effective dielectric constant over a range of frequencies.
Keywords :
high-frequency transmission lines; microstrip antennas; permittivity measurement; effective dielectric constant measurement; microstrip patch antenna; planar configuration; reflection method; relative dielectric permittivity approximate value; transmission line method; Antenna measurements; Dielectric constant; Dielectric measurements; Permittivity; Resonant frequency; Substrates; Transmission line measurements; Dielectric measurement; reflection method; resonant method; two transmission line method; wearable applications;
Conference_Titel :
Applied Electromagnetics Conference (AEMC), 2011 IEEE
Conference_Location :
Kolkata
Print_ISBN :
978-1-4577-1098-8
DOI :
10.1109/AEMC.2011.6256866
