US 7,355,554 B2
Method of producing a photonic bandgap structure on a microwave device and slot type antennas employing such a structure
Nicolas Boisbouvier, Rennes (France); Françoise Le Bolzer, Rennes (France); Ali Louzir, Rennes (France); Anne-Claude Tarot, Etrelles (France); and Kouroch Mahdjoubi, Cesson (France)
Assigned to Thomson Licensing, Boulogne Billancourt (France)
Appl. No. 10/530,336
PCT Filed Oct. 03, 2003, PCT No. PCT/FR03/50080
§ 371(c)(1), (2), (4) Date Nov. 10, 2006,
PCT Pub. No. WO2004/034502, PCT Pub. Date Apr. 22, 2004.
Claims priority of application No. 02 12656 (FR), filed on Oct. 11, 2002.
Prior Publication US 2007/0097005 A1, May 03, 2007
Int. Cl. H01Q 13/10 (2006.01)
U.S. Cl. 343—767  [343/909] 14 Claims
OG exemplary drawing
 
1. Microwave antenna consisting of a closed slot produced on a first metallized face of a substrate, the slot being fed via a feed line and operating at a given frequency, including a filtering structure (PBG) consisting of metal elements produced on a second face of the substrate opposite the first face, said elements facing the slot being periodically spaced and having identical surface to form a photonic bandgap structure and determining a bandgap frequency.