Small Wide-Band Printed Inverted-L Antenna with Non-Foster Matching

Abdullah HASKOU  Dominique LEMUR  Sylvain COLLARDEY  Ala SHARAIHA  

Publication
IEICE TRANSACTIONS on Communications   Vol.E101-B   No.2   pp.309-315
Publication Date: 2018/02/01
Online ISSN: 1745-1345
Type of Manuscript: Special Section PAPER (Special Section on Recent Progress in Antennas and Propagation in Conjunction with Main Topics of ISAP2016)
Category: Antennas
Keyword: 
electrically small antenna,  miniaturization,  non-Foster,  

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Summary: 
In this paper, we present a small, wide-band, Inverted-L Antenna (ILA) with non-Foster matching. The antenna's size is 9.5×19.5mm2 and it is integrated on a Printed Circuit Board (PCB) of 90×35mm2. A design procedure is presented and sensitivity and stability analysis are performed. Experiments show that the non-Foster matched antenna has (S11 < -10dB) impedance bandwidth of 92.2% at a central frequency of 1.5GHz, whereas the passive antenna (without the non-Foster matching) has an impedance bandwidth of 12.6% at 2.46GHz.