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An Approximate Green's Function for a Finite Grounded Dielectric Slab Lale Alatan*1
 

Summary: An Approximate Green's Function for a Finite Grounded Dielectric Slab
Lale Alatan*1
Özlem Aydin Civi1
Gölge Ögücü2
1
Electrical & Electronics Eng. Dept.
Middle East Technical University
06531 Ankara, TURKEY
2
Electrical & Electronics Eng. Dept.
University of Gaziantep
Gaziantep, TURKEY
Especially in applications like mobile communications, the dielectric substrate of
microstrip antennas are restricted to small sizes due to the space limitations. In most
studies which analyze microstrip patch antennas with finite grounded dielectric slabs,
the current distribution on the patch surface and therefore the input impedance of the
antenna are assumed not to be affected by the truncation of the ground plane and the
dielectric slab. However both the experimental and the theoretical results presented in
[1] implies that the input impedance of the antenna could vary up to 50% by changing
the size of the grounded dielectric slab. In [1], the transmission line model is modified

  

Source: Alatan, Lale Hayırlıoğlu - Department of Electrical and Electronics Engineering, Middle East Technical University

 

Collections: Engineering