CN103516380A

CN103516380A - Wireless communication device

Info

Publication number: CN103516380A
Application number: CN201210217600.4A
Authority: CN
Inventors: 臧宁峰
Original assignee: Shenzhen Futaihong Precision Industry Co Ltd; Chi Mei Communication Systems Inc
Current assignee: Shenzhen Futaihong Precision Industry Co Ltd; Chi Mei Communication Systems Inc
Priority date: 2012-06-28
Filing date: 2012-06-28
Publication date: 2014-01-15
Also published as: TW201401792A; TWI566533B

Abstract

The invention discloses a wireless communication device which comprises an antenna. The antenna is used for receiving and transmitting first wireless signals and second wireless signals, wherein the first wireless signals and the second wireless signals are of different working frequencies. The second wireless signals comprise two channels of signals which have the same working frequency range. The wireless communication device further comprises a duplexer, a first processing chip, a diverter switch and a second processing chip, the duplexer is electrically connected with the antenna to receive the first wireless signals and the second wireless signals, the duplexer is used for outputting the first wireless signals and the second wireless signals in a frequency division communication mode, the first processing chip is used for receiving and processing the first wireless signals, the diverter switch is used for receiving the two channels of signals of the second wireless signals and outputting the two channels of the signals in a time division communication mode, and the first processing chip is used for receiving and processing the two channels of the signals. The wireless communication device reduces the requirement for internal space of the antenna, and the miniaturization of the wireless communication device is facilitated.

Description

Radio communication device

Technical field

The present invention relates to a kind of radio communication device, particularly a kind of radio communication device that receives two-band signal.

Background technology

At present, a lot of radio communication devices (for example mobile phone) all have two-band signal receiving function, for example the signal receiving function of bluetooth (Bluetooth, BT) and global positioning system (Global Position System, GPS).For this reason, such radio communication device body all needs to be equipped with two antennas simultaneously, to receive respectively the signal of two frequency ranges.Yet, two antennas are set in radio communication device simultaneously, tend to, because antenna is unfavorable for the miniaturization of radio communication device to the requirement in installing space, make circuit structure more complicated simultaneously, increase design cost.

Summary of the invention

In view of this, be necessary to provide a kind of two-band signal and antenna less radio communication device that takes up room that receives.

A kind of radio communication device, it comprises antenna, this antenna is for receiving and dispatching first kind wireless signal and the Equations of The Second Kind wireless signal that operating frequency is different, described Equations of The Second Kind wireless signal comprises the identical Er of operating frequency range road signal, this radio communication device also comprises duplexer, the first process chip, diverter switch and the second process chip, this duplexer and antenna are electrically connected to receive first kind wireless signal and Equations of The Second Kind wireless signal, this duplexer is for exporting first kind wireless signal and Equations of The Second Kind wireless signal in the mode of frequency division communication, this first process chip and duplexer are electrically connected, for receiving and process first kind wireless signal, this diverter switch and duplexer are electrically connected, be used for receiving Equations of The Second Kind wireless signal Er road signal, and export Gai Er road signal with the mode timesharing of time-division communication, this first process chip and diverter switch are electrically connected, for receiving and process Gai Er road signal.

Above-mentioned radio communication device is received and dispatched the wireless signal of two class different frequencies simultaneously by antenna, and exports according to the frequency Fen Er road of wireless signal by duplexer.This case simultaneously further utilizes diverter switch that Equations of The Second Kind wireless signal Er road signal is exported by the mode timesharing of time-division communication.So, this radio communication device can utilize the different wireless signal of single antenna receiving-sending, can save inner space, is conducive to the miniaturization of radio communication device.

Accompanying drawing explanation

Fig. 1 is the functional block diagram of the radio communication device of better embodiment of the present invention.

Main element symbol description

Radio communication device	100
		Antenna	20
Match circuit	30
		Duplexer	40
Input	41
		The first output	42
The second output	43
		Filter	50
Diverter switch	60
		The first terminal	61
The second terminal	62
		The 3rd terminal	63
The first process chip	70
		The second process chip	80

Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.

Embodiment

Refer to Fig. 1, better embodiment of the present invention provides a kind of radio communication device 100, and it can be mobile phone, personal digital assistant (Personal Digital Assistant, PDA) etc.

This radio communication device 100 comprises antenna 20, match circuit 30, duplexer 40, filter 50, diverter switch 60, the first process chip 70 and the second process chip 80.

This antenna 20 is dual-band antenna, for the lower first kind wireless signal of transmitting-receiving frequency and the higher Equations of The Second Kind wireless signal of frequency.In the present embodiment, this first kind wireless signal comprises global positioning system (GPS) signal, and its work communication frequency is about 1.575GHz.This Equations of The Second Kind wireless signal comprises bluetooth (BT) signal and Wireless Fidelity (wireless fidelity, WIFI) signal, and the operating frequency of this BT signal and WIFI signal is all about 2.4-2.48GHz.Wherein, the mode of communicating by letter by frequency division between this first kind wireless signal and Equations of The Second Kind wireless signal is received and dispatched, and between this BT signal and WIFI signal, by the mode of time-division communication, receives and dispatches.For avoiding first kind wireless signal and the mutual interference of Equations of The Second Kind wireless signal phase, can, by fluting being set on antenna 20, make antenna 20 isolations own reach 20dB left and right.

This match circuit 30 is electrically connected with antenna 20, adjusts, to optimize antenna performance for first kind wireless signal and Equations of The Second Kind wireless signal that antenna 20 is received.For example, improve voltage standing wave ratio (Voltage Standing Wave Ratio, VSWR) and the return loss (Return Loss) of signal.

This duplexer 40 is for carrying out shunt output to first kind wireless signal and Equations of The Second Kind wireless signal.This duplexer 40 comprises input 41, the first output 42 and the second output 43.This input 41 is electrically connected with match circuit 30, and first kind wireless signal and Equations of The Second Kind wireless signal enter duplexer 40 through this input 41.This first output 42 and the first process chip 70 are electrically connected, and this duplexer 40 is for exporting by this first output 42 the lower first kind wireless signal of frequency to the first process chip 70.This second output 43 is electrically connected with filter 50, and this duplexer 40 is for exporting by this second output 43 the higher Equations of The Second Kind wireless signal of frequency to filter 50.In the present embodiment, the isolation of the output signal of this duplexer 40 is about 25dB left and right, further to avoid first kind wireless signal and the mutual interference of Equations of The Second Kind wireless signal phase.

This filter 50 is for carrying out filtering processing to Equations of The Second Kind wireless signal.Meanwhile, this filter 50 is electrically connected with diverter switch 60, with the Equations of The Second Kind wireless signal after filtering is processed, is sent to diverter switch 60.

This diverter switch 60 comprises the first terminal 61, the second terminal 62 and the 3rd terminal 63.This first terminal 61 is electrically connected with filter 50, to receive the Equations of The Second Kind wireless signal after filtering is processed.Simultaneously this first terminal 61 according to switchably conducting of certain time interval between the second terminal 62 and the 3rd terminal 63, so that the BT signal of Equations of The Second Kind wireless signal and WIFI signal are sent to respectively the second terminal 62 and the 3rd terminal 63.This time interval is consistent with predefined time slot in radio communication device 100 time-division communication modes, makes the action that diverter switch 60 is switched transmission BT signal and WIFI signal keep synchronizeing with the action that antenna 20 switches transmitting-receiving BT signals and WIFI signal.

This first process chip 70 is digital signal processor, and it is for example, for the treatment of this first kind wireless signal (, extracting gps navigation message), to obtain corresponding information.

This second process chip 80 is electrically connected with the second terminal 62 and the 3rd terminal 63 of diverter switch 60, the Equations of The Second Kind wireless signal transmitting to receive diverter switch 60.In the present embodiment, this second process chip 80 is also digital signal processor, and it is for example, for the treatment of this Equations of The Second Kind wireless signal (, decoding BT signal or WIFI signal), to obtain corresponding information.

Further illustrate the operation principle of this radio communication device 100 below: when antenna 20 is started working, this antenna 20 is lower first kind wireless signal (as gps signal) and the higher Equations of The Second Kind wireless signal (as BT signal and WIFI signal) of frequency of receive frequency simultaneously.This first kind wireless signal and Equations of The Second Kind wireless signal enter duplexer 40 through the adjustment of match circuit 30.Wherein first kind wireless signal is sent to the first process chip 70 through the first output 42 of duplexer 40, and is processed by the first process chip 70.Equations of The Second Kind wireless signal is sent to diverter switch 60 through the second output 43 of duplexer 40, and diverter switch 60 is exported BT signal and WIFI signals according to certain time interval to the second process chip 80 timesharing, so that this second process chip 80 is processed.

Be appreciated that, first kind wireless signal of the present invention also can be the signal of other frequency range, as GSM900, Equations of The Second Kind wireless signal of the present invention also can be the signal of other frequency range, as comprise CDMA850 and WCDNA-BAND5, the operating frequency of the two is about 824-896MHz, as long as the antenna 20 of corresponding band is set.

Radio communication device 100 of the present invention, by the antenna 20 of double frequency is set, makes its wireless signal of simultaneously receiving and dispatching two class different frequencies, exports by duplexer 40Fen bis-tunnels simultaneously.So, this radio communication device 100 can utilize the different wireless signal of single antenna 20 transmitting-receiving, can save inner space, is conducive to the miniaturization of radio communication device.

Claims

1. a radio communication device, it comprises antenna, it is characterized in that: this antenna is for receiving and dispatching first kind wireless signal and the Equations of The Second Kind wireless signal that operating frequency is different, described Equations of The Second Kind wireless signal comprises the identical Er of operating frequency range road signal, this radio communication device also comprises duplexer, the first process chip, diverter switch and the second process chip, this duplexer and antenna are electrically connected to receive first kind wireless signal and Equations of The Second Kind wireless signal, this duplexer is for exporting first kind wireless signal and Equations of The Second Kind wireless signal in the mode of frequency division communication, this first process chip and duplexer are electrically connected, for receiving and process first kind wireless signal, this diverter switch and duplexer are electrically connected, be used for receiving Equations of The Second Kind wireless signal Er road signal, and export Gai Er road signal with the mode timesharing of time-division communication, this first process chip and diverter switch are electrically connected, for receiving and process Gai Er road signal.

2. radio communication device as claimed in claim 1, it is characterized in that: described duplexer comprises input, the first output and the second output, this input and antenna are electrically connected to receive first kind wireless signal and Equations of The Second Kind wireless signal, this first output and first is processed core and is electrically connected to export first kind wireless signal, and this second output and diverter switch are electrically connected to export Equations of The Second Kind wireless signal Er road signal.

3. radio communication device as claimed in claim 1, is characterized in that: described antenna is dual-band antenna.

4. radio communication device as claimed in claim 2, is characterized in that: described radio communication device also comprises match circuit, and described match circuit is electrically connected between antenna and the input of duplexer.

5. radio communication device as claimed in claim 2, it is characterized in that: described radio communication device also comprises filter, described filter is electrically connected between second output and diverter switch of duplexer, for Equations of The Second Kind wireless signal Er road signal is carried out to filtering processing.

6. radio communication device as claimed in claim 5, it is characterized in that: described diverter switch comprises the first terminal, the second terminal and the 3rd terminal, described the first terminal and filter are electrically connected, to receive through filtering, process Hou bis-road signals, described the second terminal and the 3rd terminal are all electrically connected with the second process chip, the switchably conducting of described the first terminal is between the second terminal and the 3rd terminal, to be sent to the second process chip by the second terminal and the 3rd terminal Jiang Er road signal respectively.

7. radio communication device as claimed in claim 6, is characterized in that: action and antenna that described diverter switch is switched Equations of The Second Kind wireless signal Er road signal switch keeping strokes of reception Equations of The Second Kind wireless signal Er road signal.

8. radio communication device as claimed in claim 1, is characterized in that: described first kind wireless signal comprises global positioning system signal, and described Equations of The Second Kind wireless signal comprises Bluetooth signal and Wireless Fidelity signal.

9. radio communication device as claimed in claim 1, is characterized in that: described the first process chip and the second process chip are digital signal processor.