[PDF] Top 20 A Compact Stacked Circularly Polarized Annular-Ring Microstrip Antenna for GPS Applications

... a stacked annular ring coupled to a shorted circular patch was presented which offered a large impedance bandwidth and low cross- polarization ...adopted microstrip line as an impedance ... See full document

... square ring strip, wherein an inverted L-shaped strip and a small rectangular patch are embedded on its upper left corner and lower right corner for improving circular polarization ...proposed antenna, ... See full document

... broadband, circularly polarized, stacked, ring-slotted microstrip patch antenna is designed for universal ultra-high-frequency (UHF) radio frequency identification (RFID) reader ... See full document

... used, GPS receiver requires compact, lightweight, low power, low cost, high reliability and with mobility capability ...life, GPS also provide us with position, timing, and velocity information that ... See full document

... traditional microstrip antennas, the realization of circular polarization of ARMSA also refers to two approaches: introducing perturbation segments [5, 7], and adopting two feeding points [4, ... See full document

... new annular ring microstrip antenna with elliptical shape modulated with sine wave has been ...this antenna has good circular polarization characteristics over a bandwidth of around 9 ... See full document

... Multifarious microstrip antennas have been presented for GPS applications ...proposed antenna in [4] is a dual-band circularly polarized cavity-backed annular slot ... See full document

... quality circularly polarized ...feed, stacked, slotted circularly polarized microstrip antenna in which circular polarization is achieved with using two circular slots ... See full document

... a compact broadband circularly polarized shorted annular patch antenna (SAP) that covers all the GPS frequencies (L5: ...final antenna can provide very good ... See full document

... circular ring microstrip line through multiple slots [4], asymmetric-circular shaped slotted microstrip antenna [5], a circularly polarized patch antenna fed by four ... See full document

... ITS applications such as ETC (electric toll collection system), GPS (global positioning system), SDRAS (satellite digital audio radio service) and VICS (vehicle information and communications system) have ... See full document

... patch microstrip antennas are traditionally used to implement circular polarization [1, ...years, annular- ring microstrip antenna (ARMSA) is another available structure to realize ... See full document

... proposed antenna has a more compact size thanks to the use of the annular-rings and the reduction of the substrate ...dual-band antenna shown in [6] presents a compact size because it ... See full document

... Circularly polarized printed slot antennas are widely used in satellite communication and recent wireless communication application due to their advantages such as large impedance bandwidth, low profiles ... See full document

... days, Compact circularly polarized microstrip antenna antenna plays an important role in satellite communication and airborne communication due to its small size, light weight, ... See full document

... According to the specifications given above, an antenna prototype for left hand rotation circular polarization (LHCP) was manufactured, measured and compared with simulated results. The structure of the ... See full document

... hexa-band antenna is proposed with very small frequency ...hexa-band antenna are analysed, and mechanism is ...reference antenna which is used for comparison purpose and referred as Ant ...reference ... See full document

... L1/L2 GPS antenna is proposed. The antenna generates dual- band circularly polarized radiation by exciting a cross-slot and ring-slot of a concentric circular aperture using a ... See full document

... for compact antennas and which is been operated more than one ...an antenna with a low profile, minor size, and a light weight is required in wireless communications ...patch antenna is a narrow ... See full document

... N antenna elements is typically arranged in a regular architecture, to form a Switched Beam Antenna (SBA), which is the key component for space division multiple access (SDMA) technology [7, ...specific ... See full document