Title :
60 GHz patch antenna in LTCC with an integrated EBG structure for antenna pattern improvements
Author :
McKinzie, William E. ; Nair, Darsana M. ; Thrasher, Bradley A. ; Smith, Michael A. ; Hughes, Elizabeth D. ; Parisi, James M.
Author_Institution :
WEMTEC, Inc., Fulton, MD, USA
Abstract :
We present a 60 GHz LTCC aperture-coupled patch antenna with an integrated Sievenpiper EBG structure used for suppression of TM mode surface waves. This is believed to be the first demonstration of a Sievenpiper EBG structure used inside a millimeterwave LTCC antenna. The merit of this EBG structure is to yield a predicted 6 dB improvement in broadside directivity. Without the EBG structure, edge diffraction of surface waves degrades the pattern into two main beams. The combination of a new LTCC material system (DuPont 9K7 GreenTape™) along with laser ablation processing for fine line and fine slot definition allowed the integration of a successful EBG structure with an aperture coupled patch antenna.
Keywords :
aperture-coupled antennas; ceramics; electromagnetic wave diffraction; laser ablation; microstrip antennas; millimetre wave antennas; photonic band gap; DuPont 9K7 GreenTape; LTCC aperture-coupled patch antenna; TM mode surface wave suppression; antenna pattern improvement; broadside directivity; electromagnetic bandgap structure; fine line definition; fine slot definition; frequency 60 GHz; gain 6 dB; integrated EBG structure; integrated Sievenpiper EBG structure; laser ablation processing; millimeterwave LTCC antenna; surface wave edge diffraction; Metamaterials; Patch antennas; Periodic structures; Surface treatment; Surface waves;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location :
Memphis, TN
Print_ISBN :
978-1-4799-3538-3
DOI :
10.1109/APS.2014.6905209
