SYMMETRICAL PYRAMIDAL HORN ANTENNAS BASED ON EBG STRUCTURES
I. Khromova, I. Ederra, R. Gonzalo, B. P. de Hon
Progress In Electromagnetics Research B
Volume: 29, 2011
This paper presents a novel pyramidal (EH) horn antenna based on Electromagnetic Band Gap structures (EBGs). The reported pyramidal woodpile-based horn antenna possesses a symmetrical
radiation pattern and a wide operating frequency range. Such antennas can substitute metallic horns in certain circumstances, which is especially valuable for millimetre and THz devices. The principle of creating EH-horn antennas in the woodpile structure is explained in detail. In particular, this paper presents the design of a symmetrical woodpile EH-horn antenna operating at frequencies around 110 GHz. The reported antenna exhibits a wide operating bandwidth (more than 10%), while possessing high directivity and radiation e±ciency equal to 16.35 dBi and ¡0:55 dB (88%) respectively.
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