The proposed design of the octagonal-shaped microstrip patch antenna can work on dual band (c and x band) at resonant frequency 5.70 and 8.00 GHz. Even for at least five bands, it provides excellent return loss performance. This design is particularly easy to fabricate, uses a low-cost substrate, and covers a less space; moreover, by this design good radiation properties are obtained. It can be used in wide range of satellite communications transmission, several Wi-fi devices, several cordless telephones, several weather radar system, terrestrial communication, and space communication.
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