Patch antenna module
Disclosed is a patch antenna module, which receives a signal for position information and a signal for vehicle communication by using one patch antenna, thereby minimizing a mounting space. The disclosed patch antenna module includes a dielectric; an upper patch formed on one surface of the dielectric and for receiving a signal for position information; a lower patch formed on the other surface of the dielectric; and a feed pin for penetrating the dielectric, the upper patch, and the lower patch, formed in a length within a predetermined range, and for receiving a signal for vehicle communication.
1. A patch antenna module, comprising:
a printed circuit board,
a dielectric disposed on an upper surface of the printed circuit board;
an upper patch formed on an upper surface of the dielectric and for receiving a signal for position information;
a lower patch formed on a lower surface of the dielectric to be interposed between the printed circuit board and the dielectric; and
a feed pin for penetrating the dielectric, the upper patch, and the lower patch, formed in a length within a predetermined range, and for receiving a signal for vehicle communication,
wherein the length of the feed pin is a length from the upper patch to the ground surface of the printed circuit board, and
wherein the length within a predetermined range of the feed pin is 4.5 mm or more and 9.0 mm or less.
2. The patch antenna module of claim 1 , wherein the feed pin comprises
a head mounted on the upper patch; and
a main body for penetrating the dielectric, the upper patch, and the lower patch,
wherein the length of the feed pin is a length of the main body.
3. The patch antenna module of claim 1 , wherein the length within a predetermined range of the feed pin is 5.0 mm or more and 7.0 mm or less.
4. The patch antenna module of claim 1 ,
wherein the length within a predetermined range of the feed pin is 5.5 mm or more and 6.0 mm or less.
5. The patch antenna module of claim 1 , further comprising a spacer interposed between the lower patch and the printed circuit board.
6. The patch antenna module of claim 5 , wherein the spacer is formed to have a thickness corresponding to a value obtained by subtracting the thicknesses of the dielectric and the upper patch and the lower patch from the length of the feed pin.
7. The patch antenna module of claim 5 , wherein the spacer is a double-sided tape.
8. The patch antenna module of claim 1 , further comprising
a signal line having one end connected to the feed pin, and having the other end connected to a vehicle communication signal processing module; and
another signal line having one end connected to the feed pin, and having the other end connected to a position information signal processing module of the printed circuit board through a low-noise amplifier and a band-pass filter.