Signal transmission apparatus
A signal transmission apparatus is provided in the present disclosure, including: a substrate, and a BLUETOOTH antenna and WI-FI antennas which are provided on a same side edge of the substrate. At least two branches of the WI-FI antennas are provided, and the BLUETOOTH antenna and the WI-FI antennas are provided at intervals. According to the present disclosure, the BLUETOOTH antenna and the WI-FI antennas are provided on the same side edge of the substrate, and the BLUETOOTH antenna and the WI-FI antennas are provided at intervals, so that all the antennas of the signal transmission apparatus are provided at an edge of a terminal board, thereby facilitating signal transmission and solving a problem in the prior art that the BLUETOOTH antenna and the WI-FI antennas are respectively provided on two side edges of the substrate, affecting data transmission.
1. A signal transmission apparatus, comprising:
a substrate; and
a wireless personal area network (WPAN) antenna and wireless local area network (WLAN) antennas which are provided on a same side edge of the substrate;
at least two branches of the WLAN antennas are provided, and the WPAN antenna and the WLAN antennas are provided at intervals;
wherein the WPAN antenna is a magnetic current source WPAN antenna, and the WLAN antennas are current source WLAN antennas;
wherein the WLAN antennas are configured to two branches, which are a first WLAN antenna and a second WLAN antenna, and the WPAN antenna is arranged between the first WLAN antenna and the second WLAN antenna;
wherein the substrate is provided with a circuit ground, a first WLAN antenna RF ground, and a second WLAN antenna RF ground, the WPAN antenna is a microstrip magnetic current source WPAN antenna formed as a radiation slit arranged on the circuit ground, the first WLAN antenna is arranged on the first WLAN antenna RF ground, and the second WLAN antenna is arranged on the second WLAN antenna RF ground.
2. The signal transmission apparatus as claimed in claim 1 , wherein
a first dividing slit is defined between the circuit ground and the first WLAN antenna RF ground, and a second dividing slit is defined between the circuit ground and the second WLAN antenna RF ground.
3. The signal transmission apparatus as claimed in claim 1 , wherein,
widths of the first dividing slit and the second dividing slit are greater than or equal to 0.1 mm.
4. The signal transmission apparatus as claimed in claim 3 , wherein
microstrip transmission lines are arranged in the substrate, a circuit module is arranged on the circuit ground, both the first WLAN antenna and the second WLAN antenna are connected to the circuit module through the microstrip transmission lines.
5. The signal transmission apparatus as claimed in claim 4 , wherein
a routing mode of the microstrip transmission line is vertical routing or parallel routing.
6. The signal transmission apparatus as claimed in claim 1 , wherein
the WLAN antenna is configured as a vertical polarization antenna.
7. The signal transmission apparatus as claimed in claim 1 , wherein
the substrate is an FR4 substrate.
8. The signal transmission apparatus as claimed in claim 1 , wherein
the substrate is a hollow cuboid, and the WPAN antenna and the WLAN antennas are arranged in the substrate and are close to a same long side edge.
9. The signal transmission apparatus as claimed in claim 3 , wherein
the widths of the first dividing slit and the second dividing slit are both configured to be 1 mm.
10. The signal transmission apparatus as claimed in claim 4 , wherein
the microstrip transmission line is a CPW transmission line.
11. The signal transmission apparatus as claimed in claim 2 , wherein
the first dividing slit and the second dividing slit are formed by etching slits.
12. The signal transmission apparatus as claimed in claim 1 , wherein
a length of the radiation slit is greater than half of a wavelength of a medium.