BibTeX:

@article{IJIRSTV4I3021,
     title={Frequency Reconfigurable Log Periodic Microstrip Dipole Antenna Array for Wideband Applications},
     author={Budireddi Siva Prasad, M. G. Sumanth and Prof. P. Mallikarjuna Rao},
     journal={International Journal for Innovative Research in Science & Technology},
     volume={4},
     number={3},
     pages={86--92},
     year={},
     url={http://www.ijirst.org/articles/IJIRSTV4I3021.pdf},
     publisher={IJIRST (International Journal for Innovative Research in Science & Technology)},
}

The concept of reconfigurable antenna is widely used as an additional feature of reconfigurable ability for future wireless communication systems especially for cognitive radio applications, radar system and multi-frequency communications. There are various configurations of reconfigurable antenna such as monopole, dipole and log-periodic wideband antenna. This paper describes the design and simulation of frequency reconfigurable log periodic microstrip dipole array (FRLPMDA) using dipole patch elements with an useful frequency range for C band (4-8 GHz), X band ( 8-12 GHz ) and Ku band (12-18 GHz ). The integration of reconfigurable antennas with radio frequency (RF) switches are needed to perform the switchable ability [3-6]. In this paper, a frequency reconfigurable LPMDA has been designed to perform a wideband frequency operations by connecting fifteen dipole antennas using coaxial feed line technique. Then, the diversity in frequency is achieved by switching ON and OFF of the PIN diodes connected at every transmission line. It is compact in size and useful to support on board Radar and many wireless applications where they can reduce the size of front circuitry in communication systems.

Reconfigurable, Log Periodic Antenna, Microstrip, Wideband