The invention discloses a 2450MHz receiving rectification array antenna. According to the antenna, a 1*4 array antenna formed by four circularly polarized microstrip patch antenna units under the action of a feeding network, wherein the feeding network has an output port welded to an SMA female head. A microwave rectification circuit has a SMA male head which can be connected to a receiving arrayantenna. The rectification circuit of the present invention is composed of a low-pass filter, input and output impedance matching networks, a microwave diode and a through-pass filter, and the rectification efficiency is improved. A receiving antenna and the rectification circuit are made on different dielectric substrates, the free combination of the receiving array antennas into an antenna arrayin the later stage is facilitated, and the antenna is suitable for a receiving high-power occasion. At the same time, the number of rectification circuits is flexibly used by calculating the output currents of the receiving array antennas, and the power loss brought by a rectifier diode is reduced.

2450MHz receiving rectification array antenna

The invention discloses an all-in-one antenna which comprises a rectangular printed circuit board (PCB), an L antenna patch, an S antenna patch and a B1 antenna patch. The L antenna patch, the S antenna patch and the B1 antenna patch are successively formed on the upper surface of the PCB in the length direction of the PCB. The L antenna patch, the S antenna patch and the B1 antenna patch are connected with a connecting line. The lower surface of the PCB is provided with three shielding covers. The three shielding covers are arranged right below the L antenna patch, the S antenna patch and the B1 antenna patch respectively in a corresponding manner. The edge at one side of the PCB is provided with two grooves in a recessed manner. The two grooves are respectively arranged at a position between the L antenna patch and the S antenna patch and a position between the S antenna patch and the B1 antenna patch. The L antenna patch, the S antenna patch and the B1 antenna patch are respectively provided with a feed needle. The all-in-one antenna provided by the invention has advantages of small volume, high integration, multiple-frequency coverage, low cost and simple manufacture process.

All-in-one antenna

The utility model discloses a four array L band omnidirectional satellite positioning antenna which comprises a substrate, a number of circular polarization patch antennas and microstrip lines used as power dividers. The substrate surface is provided with grooves into which the patch antennas can be embedded. A number of patch antennas are connected through the microstrip lines. The substrate is provided with a through hole which can penetrate the substrate along the thickness direction of the substrate. The four array L band omnidirectional satellite positioning antenna provided by the utility model can reduce the antenna size on the premise that signal receiving is not affected.

Shen Jing

Papers

Four array L band omnidirectional satellite positioning antenna