Title :
A Small Wideband Low-Multipath GNSS Antenna Using Resistive Film
Author :
Li Du ; Yunqi Fu
Author_Institution :
Coll. of Electron. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha, China
Abstract :
A small wideband low-multipath Global Navigation Satellite System (GNSS) patch antenna is implemented in this letter. The antenna obtains high multipath mitigation by attaching a multiple-layer resistive plate at the end of the metal ground plane. The plate consists of several pieces of resistive films, approximately provides tapered sheet resistance to reduce the surface wave. Four capacitive fed-probes improve the circularly polarized purity and expand the bandwidth for GNSS frequency coverage. The compact structure keeps the antenna a miniature size and low profile.
Keywords :
antenna feeds; broadband antennas; electric resistance; microstrip antennas; satellite navigation; capacitive fed-probes; circularly polarized purity; metal ground plane; multipath mitigation; multiple-layer resistive plate; resistive film; resistive films; surface wave reduction; tapered sheet resistance; wideband low-multipath GNSS patch antenna; wideband low-multipath global navigation satellite system patch antenna; Films; Global Navigation Satellite Systems; Global Positioning System; Inductors; Loaded antennas; Resistance; Global Navigation Satellite System (GNSS); high-precision application; microstrip patch antenna; multipath mitigation; resistive plate;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2013.2279159
