Pin Switched Microstrip Slot Antenna Array for 3d Microwave Reflection Tomography
نویسندگان
چکیده
The design and test of microstrip slot antenna array for 3D microwave imaging for the structural assessment of concrete structure is presented in this paper. The array contains 16 antenna elements and uses microstrip feed network for the ease in the design. It also adopts commercially available PIN diodes as switches to control the sequence of turning on or off microstrip slot antenna elements. PIN diodes are very reliable and possess good isolation up to RF frequencies beyond the operating frequency of the array. The transmission power of the antenna element when it is on is also measured to verify the functionality of the array. The general theory of image extraction algorithm is briefly explained with the display examples based on the simulation results.
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