A New Planar Dual-Band GPS Antenna Designed for Reduced Susceptibility to Low-Angle Multipath

Design of an Anti-Jamming Five-Element Planar GPS Array Antenna

“…CRPA [7], [8] . 제안된 배열 안테나는 한정된 공간에 다수의 안테나가 장착하므로, 격리도 특성이 열화되어 이 득 저감 및 패턴 왜곡 현상이 발생한다 [9], [10] . 성능 열화 조 건을 최소화하고, 높은 GPS 수신 성능의 도출을 위해, 개 별 안테나 형상으로 적층형 패치 구조를 사용하였으며, 격리도 특성의 개선과 안테나 소형화를 위해 고유전율의 기판을 공진 패치 사이에 삽입하였다 [11], [12] .…”

A Low-Cost Dual-Wideband Active GNSS Antenna With Low-Angle Multipath Mitigation for Vehicle Applications

“…However, thicker air gap implies longer feed probes with consequently more inductance leading to poor impedance matching. Therefore, instead of the direct probe feed in [16], the proximity-coupled feeds [1] with rectangle patches are used to introduce capacitance that compensates for the increased inductance due to the longer probe. Proximity-coupled rectangle patches are located above the SAR and ISAR patches and are printed on the top side of the upper F4B substrate with thickness of H 1 = 1.0 mm.…”

“…In [13,14], single-band (L 1 ) GPS antennas based on the RSW concept were designed and shown to provide comparable multipath performance to the choke ring and pinwheel antennas. While a dual-band GPS antenna operating at the L 1 (1575 MHz) and L 2 (1227 MHz) frequencies has been designed by L. Boccia et al using stacked SAR patches [15] and L. I. Basilio et al combining a SAR patch an a ISAR patch [16]. In this paper, the focus is to broaden the bandwidth of the SAR and ISAR antennas and realize a low-cost dual-wideband active GNSS antenna with low-angle multipath mitigation for vehicle applications, which is compatible with GPS, GLONASS, Galileo and Compass systems.…”

A Pin-Loaded Microstrip Patch Antenna With the Ability to Suppress Surface Wave Excitation

“…The short circuit at the inner radius was achieved by using a high number of shorting pins. The same technique was used to design a dual-band microstrip patch antenna for high-precision GPS receivers [9]. In [10][11][12][13], circular patches that include shorting pins were investigated using homogeneous dielectric substrates, without regard to the experimental realizability of the resulting designs.…”