Antenna tuning circuit and wireless communication equipment
A technology for wireless communication equipment and antenna tuning, applied in the field of communication, can solve problems such as reducing communication quality, achieve the effect of eliminating the effect of working frequency shifting to low frequency and improving communication quality
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Embodiment 1
[0041] Such as figure 1 As shown, this embodiment provides an antenna tuning circuit 10, which is applied to a wireless communication device 100, and the wireless communication device 100 includes at least one radio frequency module 101-10M ( figure 1 exemplarily shows a radio frequency module 101, a radio frequency module 102, .
[0042]In a specific application, the wireless communication device may be any device with a wireless communication function such as a mobile phone, a tablet computer, a smart bracelet, a personal digital assistant, and a mobile POS (point of sale, sales terminal) machine. The radio frequency module can be arranged in the wireless communication device and has any circuit, chip or device that emits radio frequency signals for wireless communication, for example, GPS (Global Positioning System, Global Positioning System) module, WiFi module, Bluetooth module, GSM (Global System For Mobile Communications, Global System for Mobile Communications) module...
Embodiment 2
[0063] Such as figure 2 As shown, in this embodiment, the antennas 11-1M also include at least one second ground point ( figure 1 exemplarily shows that antenna 11 further includes at least one second ground point 211-21m, antenna 12 further includes at least one second ground point 221-22m, ..., antenna 1M further includes at least one second ground point 2M1-2Mm ; Wherein, m≥1 and is an integer), the antenna tuning circuit 10 also includes:
[0064] The second tuning module 4, the second tuning module 4 is electrically connected between the first ground point 210-2M0 and the ground, and the second tuning module 4 is also electrically connected between the second ground point 211-2Mm and the ground, for When the first tuning signal is received, the electrical connection between the first ground point of the antenna and the corresponding radio frequency module is connected, and when the second tuning signal is received, the connection between the first ground point of the an...
Embodiment 3
[0074] Such as image 3 As shown, in this embodiment, the first tuning module 3 in Embodiment 1 or Embodiment 2 includes at least one first electronic switch unit 31-3M ( image 3 exemplarily represented as the first electronic switch unit 31, the first electronic switch unit 32, ..., the first electronic switch unit 3M), and the antennas 11-1M correspond to the first electronic switch units 31-3M;
[0075] The first feed point 110 of the antenna 11, the second feed points 111-11N and the corresponding radio frequency module 101 are electrically connected to the first electronic switch unit 31 corresponding to the antenna 11, the first feed point 120 of the antenna 12, the second The feed points 121-12N and the corresponding radio frequency module 102 are electrically connected to the first electronic switch unit 32 corresponding to the antenna 12, ..., the first feed point 1M0, the second feed point 1M1-1MN of the antenna 1M and the corresponding The radio frequency module 1...
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