Filtering slot antenna using coupled line resonator

Kevin Nadaud (1) , Dominique Lo Hine Tong (2) , Erwan Fourn (1)

1 IETR - Institut d'Électronique et des Technologies du numéRique
2 Technicolor

This paper presents the design of a novel slot filter-ing antenna suitable for modern electronic devices integrating various wireless systems that have to coexist. The approach consists in feeding the slot antenna through a filtering microstrip-to-slot-line transition. This transition comprises a coupled line resonator which enables to create two out-of-band transmission zeros and by this way to increase drastically the frequency selectivity of the transition. As proof-of-concept, a slot filtering antenna has been designed for WLAN applications operating in the 2.4GHz band, by using the HFSS TM simulation tool. A prototype has been also fabricated, using a low-cost FR4 substrate, where 2 antennas are printed on a board in order to accommodate the requirements of a 2×2 MIMO system.

Mots clés: Slot antenna; filtering antenna; coupled lines

Domaines: Electronique

Kevin Nadaud, Dominique Lo Hine Tong, Erwan Fourn. Filtering slot antenna using coupled line resonator. European Microwave Integrated Circuit Conference (EuMIC), Oct 2014, Rome, Italy. pp.1500 - 1503, ⟨10.1109/EuMC.2014.6986733⟩. ⟨hal-01108217⟩