GPS systems are more and more widel什子y used in our lives. This i她路s inseparable from the important role 街放of GPS antennas. The followi也制ng GPS antenna manufacturers will tell 靜民you the specific role of線船 GPS antennas.

Do you know the role of GPS antenn國錯a

1. It is used to capture sate光匠llites and receive satelli多科te positioning infor國理mation, that is, to radia紙腦te and receive electromagnetic w影志aves. Any high-frequency circuit, 歌生as long as it is not completely s和飛hielded, can radiate 舞還electromagnetic waves to the surr火嗎ounding space more or less, or rece些們ive electromagnetic w紙懂aves more or less from the su媽科rrounding space. According to th我用e difference of GPS 費靜antennas, it can be divided int河大o flat antennas and hel道月ical antennas. The heli現遠cal antenna has a stronger又行 ability to search for如門 stars.

2. Convert the electromagnetic w業在ave energy of the radio 裡著signal from the satellit做劇e into the current that離區 can be picked up by 綠文the receiver electronics, that i窗行s, energy conversion. General木動ly, for special equipment or v風女ehicle-mounted equipment, there 筆錢is often a certain distance betwee車技n the equipment and the GP一雨S receiving module, so in the real科北 environment, a broken line of more tha樂章n 1 meter may be used. However門但, because the feeder has a lot紅民 of loss on the signal, in this ca也媽se, only active GPS a呢我ntennas can be selected.

The size and shape of the GPS antenna 子這are very important, be樹開cause these characteristics dete快看rmine the ability of the ante這場nna to obtain weak GPS signals. GPS 頻水satellite signal is divide窗通d into L1 and L2, the frequency i術又s 1575.42MHZ and 1228MHZ respectively, 白唱among them L1 is the open civilian sign雜車al, the signal is circular polarizati房得on. The signal strength is about 年器-166DBM, which is a relative務在ly weak signal. According to need民靜s, the antenna can be desi白你gned to work on a single L1 frequency,著讀 or on two frequencies, L1 and 但章L2.