Date of Award


Publication Type

Master Thesis

Degree Name



Electrical and Computer Engineering

First Advisor

Chowdhury, Sazzadur (Electrical and Computer Engineering)


Electrical engineering.




A micromachined silicon based MEMS single-pole-Single-Throw (SPST) switches embedded reconfigurable microstrip antenna array for use in a 77 GHz tri-mode automotive collision avoidance radar is presented. The emphasis is put on compact 77 GHz micromachined microstrip antenna array, capable of being integrated with silicon base Rotman lens that provides an intrinsic beamforming capability without any microelectronic signal processing. The first part of this thesis deals with the theory behind microstrip antennas and a deep explanation of antenna arrays. The second part of the thesis is concerned with design procedures and considerations. It provides a detailed study of how to design and fabricate an inset fed rectangular micromachined microstrip patch antenna array using XFDTD 3-D software and study the effect of antenna dimensions. At last, this thesis shows the simulation results that by incorporating a micromachined technology into microstrip antenna array we are able to achieve higher radiation efficiency and bandwidth than conventional antenna array.