The effect of an electromagnetic band-gap structure on a PIFA antenna array

• Published in: 2004 IEEE 15th International Symposium on Personal, Indoor and Mobile Radio Communications (IEEE Cat. No.04TH8754) Vol. 2; pp. 1268 - 1271 Vol.2
• Main Authors: Kretly, L.C., Alves S, A.M.P.
• Format: Conference Proceeding
• Language: English
• Published: Piscataway NJ IEEE 2004
• Subjects: Antenna arrays; Antenna radiation patterns; Antennas; Antennas and propagation; Applied sciences; Bandwidth; Conductors; Electromagnetic propagation; Exact sciences and technology; Frequency; Metamaterials; Periodic structures; Radiocommunications; Surface impedance; Telecommunications; Telecommunications and information theory; Surface impedance; Photonic band gap; Ground plane antenna; Inverted F shape; Wireless telecommunication; Surface current; Directivity; Frequency band; Photonic crystal; Radiation pattern; Plane antenna; Antenna array; Electromagnetic properties
• ISBN: 9780780385238; 0780385233
• DOI: 10.1109/PIMRC.2004.1373901

This paper presents the effect of an EBG, electromagnetic band-gap structure under a PIFA, planar inverted-F antenna, and its antenna array. The EBG structures have special electromagnetic properties such as high surface impedance and suppression of propagating surface currents within a frequency band, which are very useful for wireless applications. The EBG presented is the AMC, artificial magnetic conductor, also called mushroom-like EBG structure. The AMC is used as the antenna array ground plane to observe the improvement on characteristics as bandwidth, gain and directivity. The PIFA is a type of antenna which has been used in many communication applications. It is a medium bandwidth radiator with reduced dimensions. A typical PIFA antenna is designed and it is used as element for the antenna array. The antenna array presented achieved a wide bandwidth and has a steerable radiation pattern.