CN202268473U

CN202268473U - Radio communication apparatus

Info

Publication number: CN202268473U
Application number: CN2011203926348U
Authority: CN
Inventors: 曾文泰; 黄金莲; 谢祥凤; 古光原; 赖国仁; 林嘉彦; 彭奂喆
Original assignee: Wistron Neweb Corp
Current assignee: Wistron Neweb Corp
Priority date: 2011-10-14
Filing date: 2011-10-14
Publication date: 2012-06-06
Anticipated expiration: 2021-10-14

Abstract

A radio communication apparatus includes a circuit board, a first antenna, which is formed at the first position of the circuit board, and a second antenna, which is formed at the second position of the circuit board. Wherein the circuit board approximately shows a quadrangle, and the first position and the second position are approximately at two opposite angles of the quadrangle. In the utility model, an isolation degree can be enhanced in a limit space, and the antenna efficiency is improved.

Description

Radio communication device

Technical field

The utility model relates to a kind of radio communication device, refers to a kind of isolation that promotes especially, to improve the radio communication device of antenna efficiency.

Background technology

Electronic product with radio communication function like notebook computer, personal digital assistant (Personal Digital Assistant) etc., is launched or is received radio wave through antenna, transmitting or the exchange radio signal, and then the visit wireless network.Therefore, in order to let the user can visit cordless communication network more easily, the bandwidth of ideal antenna should increase in tolerance band as much as possible, and size then should reduce as far as possible, to cooperate the trend of electronic product volume-diminished.In addition, along with the continuous evolution of wireless communication technology, the antenna amount that electronic product disposed possibly increase.For instance; Long Term Evolution (Long Term Evolution; LTE) wireless communication system and WLAN standard IEEE 802.11n support multiple-input and multiple-output (Multi-inputMulti-output, the MIMO) communication technology, that is the associated electrical product can be through multiple (or many groups) antenna synchronous transmitting/receiving wireless signal; With under the situation that does not increase bandwidth or total transmitting power loss (Transmit Power Expenditure); Increase the data throughout (Throughput) and the transmitting range of system significantly, and then effectively promote the spectrum efficiency and the transmission rate of wireless communication system, improve communication quality.

From the above, wireless communications products will be realized MIMO function, and the many groups of the essential collocation of prerequisite antennas the space being divided into many passages, and then provide a plurality of antenna patterns illustrated.Because use many group antennas, one of the emphasis that need consider when the problem of phase mutual interference also just becomes design between antenna is particularly as far as undersized wireless communications products.For instance, please refer to Figure 1A and Figure 1B, Figure 1A is the sketch map of a known radio communication device 10, and Figure 1B is isolation (S21) sketch map of radio communication device 10.Radio communication device 10 is a small size wireless communications products (like long limit less than 6 centimeters), and it roughly includes a circuit board 100, one first antenna 102 and one second antenna 104.Shown in Figure 1A, circuit board 100 is a rectangle, and first antenna 102 and second antenna 104 are arranged at the both sides of rectangle minor face respectively.Can know that by Figure 1B the isolation of radio communication device 10 is not good, need under the confined space, to improve.

Therefore, need provide a kind of radio communication device to solve the problems referred to above.

The utility model content

Therefore, the main purpose of the utility model is to provide a kind of radio communication device, under the confined space, to improve isolation between antennas.

The utility model discloses a kind of radio communication device, and this radio communication device comprises: a circuit board; One first antenna, this first dwi hastasana is formed in a primary importance of this circuit board; And one second antenna, this second dwi hastasana is formed in a second place of this circuit board; Wherein, this circuit board roughly is a quadrangle, and this primary importance and this second place roughly are positioned at this tetragonal two diagonal angles.

The utility model can promote isolation under the confined space, improve antenna efficiency.

Description of drawings

Figure 1A is the sketch map of a known radio communication device.

Figure 1B is the isolation sketch map of the radio communication device of Figure 1A.

Fig. 2 A is the sketch map of the radio communication device of the utility model embodiment.

Fig. 2 B is the isolation sketch map of the radio communication device of Fig. 2 A.

Fig. 3 is the antenna efficiency sketch map of the radio communication device of Figure 1A and Fig. 2 A.

The primary clustering symbol description:

10,20 radio communication devices

100,200 circuit boards

102,202 first antennas

104,204 second antennas

Embodiment

Please refer to Fig. 2 A and Fig. 2 B, Fig. 2 A is the sketch map of the radio communication device 20 of the utility model embodiment, and Fig. 2 B is isolation (S21) sketch map of radio communication device 20.Radio communication device 20 is supported the multiple-input and multiple-output communication technology, and its framework is similar with the radio communication device 10 of Figure 1A.In detail, radio communication device 20 includes a circuit board 200, one first antenna 202 and one second antenna 204.Circuit board 200 can be a multilayer circuit board, and it roughly is a quadrangle, and its long edge lengths less than 6 centimeters (centimetre), be used for being provided with the circuit that is relevant to radio communication function, like radio circuit etc.First antenna 202 and second antenna 204 are unipole antenna, and working frequency range and is arranged at two diagonal positions of circuit board 200 respectively between 600MHz and 6GHz.

Further comparison diagram 2B and Figure 1B can know that radio communication device 20 has than the good isolation degree than radio communication device 10.In other words, under similar structure, can effectively improve the isolation of the radio communication device 20 of small size (long edge lengths is less than 6 centimeters) by two diagonal positions that first antenna 202 and second antenna 204 are arranged at circuit board 200.Under this situation, can effectively promote the antenna efficiency of first antenna 202 and second antenna 204, be beneficial to the application of multiple-input and multiple-output.Please refer to Fig. 3, Fig. 3 is the antenna efficiency sketch map of radio communication device 20 and radio communication device 10.Can find out that by Fig. 3 first antenna 202 of radio communication device 20 and second antenna 204 have preferable antenna efficiency than first antenna 102 and second antenna 104 of radio communication device 10.

Be noted that the radio communication device 20 shown in Fig. 2 A is the embodiment of the utility model, it has omitted like shell, connectivity port assemblies such as (like the USB joints), in the hope of succinctly.Yet those of ordinary skills should do different modifications according to this, and are not limited thereto.For instance, operating frequency of antenna is relevant with current path, therefore; The designer should be according to required working band; The size of suitable adjustment first antenna 202 and second antenna 204, material, shape etc., or increase matching component, to meet the demand of different system.On the other hand, the shape approximation of circuit board 200 is in quadrangle, but is not limited to the rectangle that is made up of two long limits and two minor faces; In other words, different designs such as matching mechanism, circuit layout mode consider that circuit board 200 also possibly comprise like various geometries such as lockhole, unfilled corner, arcuation bendings, but its shape can roughly classify as quadrangle.

In sum, to multiple-input-multiple-output communication system, the utility model is arranged at two diagonal angles of undersized radio communication device with two antennas, promotes isolation by this, to improve antenna efficiency.

The above is merely the preferred embodiment of the utility model, and every equivalent variations and modification of doing according to the scope of the utility model claims all should belong to the covering scope of the utility model.

Claims

1. radio communication device, this radio communication device comprises:

One circuit board;

One first antenna, this first dwi hastasana is formed in a primary importance of this circuit board; And

One second antenna, this second dwi hastasana is formed in a second place of this circuit board;

It is characterized in that this circuit board roughly is a quadrangle, this primary importance and this second place roughly are positioned at this tetragonal two diagonal angles.

2. radio communication device as claimed in claim 1 is characterized in that the length on one side of this circuit board is less than 6 centimetres.

3. radio communication device as claimed in claim 1 is characterized in that, this first antenna and this second antenna are all unipole antenna.

4. radio communication device as claimed in claim 1 is characterized in that, the frequency range of this first antenna and this second antenna is between 600MHz and 6GHz.