A multi-band whip antenna having a 30 MHz to 2 GHz bandwidth and an L- band dipole has its coverage extended up to 6 GHz by eliminating nulls and reducing VSWR problems that are cured through the utilization of a sleeve over the feedpoint of the L-band antenna. Chokes in the form of sleeves are provided at either end of the L-band dipole to shorten the L-band antenna for preventing reverse polarity currents at the L-band antenna feedpoint, with the antenna further including the use of double shielded meander lines to provide improved performance between 410-512 MHz and in which a capacitance sleeve is added at the bottom of the L-band antenna to effectively elongate the antenna below the L-band to permit operation below 700 MHz.
申请公布号
WO2012078566(A2)
申请公布日期
2012.06.14
申请号
WO2011US63414
申请日期
2011.12.06
申请人
BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC.;APOSTOLOS, JOHN T.;MOUYOS, WILLIAM;FENG, JUDY