The research of H-shaped coupling slot microstrip antenna array

In order to broad bandwidth and reduce back radiation, a novel microstrip antenna element operating at millimeter-wave band is proposed which is used H-shaped coupling slot feeding and adds parasitic patch methods. Then, using this antenna element, we design 2x2 microstrip antenna arrays and their feeding network. Comparing with traditional feeding network, H-shaped coupling slot feeding methods has little influence to radiation pattern which has low side lobe and was liable to integrate with other millimeter-wave circuit. Radiation patterns are given and as high as 19% (VSWR<2) band width is realized.

[1]  David M. Pozar,et al.  Improved coupling for aperture coupled microstrip antennas , 1991 .

[2]  Atef Z. Elsherbeni,et al.  Wideband slot antennas for radar applications , 2003, Proceedings of the 2003 IEEE Radar Conference (Cat. No. 03CH37474).

[3]  A. Dreher,et al.  Dual polarized wide-band stacked microstrip antenna with aperture coupling for SAR applications , 2000, IEEE Antennas and Propagation Society International Symposium. Transmitting Waves of Progress to the Next Millennium. 2000 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (C.

[4]  D. Pozar,et al.  Millimeter-wave design of wide-band aperture-coupled stacked microstrip antennas , 1991 .

[5]  Girish Kumar,et al.  Improved coupling for aperture coupled microstrip antennas , 1996 .

[6]  Anders Rydberg,et al.  Transmission line model for field distribution in microstrip line fed H-slots , 2001 .

[7]  R. Waterhouse,et al.  Wideband aperture coupled stacked patch antenna using thick substrates , 1996 .

[8]  D. Pozar.  Microstrip antenna aperture-coupled to a microstripline , 1985 .

[9]  F. Croq,et al.  Stacked slot-coupled printed antenna , 1991, IEEE Microwave and Guided Wave Letters.