On the input impedance of loop antennas in cylindrically stratified media

1992 ◽  
Author(s):  
W.D. Rawle
Keyword(s):  
Input Impedance ◽  
Stratified Media ◽  
Loop Antennas

Input impedance approximations for small dipole and loop antennas near ground

1970 ◽  
Vol 48 (9) ◽  
pp. 1036-1039 ◽  
Author(s):  
L. E. Vogler
Keyword(s):  
Exact Solution ◽  
Refractive Index ◽  
Input Impedance ◽  
Ground Plane ◽  
Small Dipole ◽  
Loop Antennas ◽  
Approximate Expressions

Approximate expressions for the input impedances of small vertical and horizontal dipole and loop antennas above a conducting ground plane are developed. The formulas give increasingly accurate impedance estimates as [Formula: see text], where N is the refractive index of the ground. A comparison with the exact solution for a specific case, [Formula: see text] and varying antenna heights, is given.

Advanced Mode Unity Using Loop Antennas Proximate to Reflector for Orbital Angular Momentum Communication

2018 ◽  
Author(s):  
Ryohei Yamagishi ◽  
Hiroto Otsuka ◽  
Ryo Ishikawa ◽  
Akira Saitou ◽  
Hiroshi Suzuki ◽  
...  
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Loop Antennas

Accurate measurement of the input impedance of bow-tie antenna by the S-parameter method

2016 ◽  
Vol 5 (6) ◽  
pp. 158-162
Author(s):  
Kazuma Endo ◽  
Takayuki Sasamori ◽  
Teruo Tobana ◽  
Yoji Isota
Keyword(s):  
Input Impedance ◽  
Parameter Method ◽  
S Parameter ◽  
Bow Tie
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