TWM551356U - Single sided antenna featuring dual frequency and double feeder structure - Google Patents

Description

Single-sided dual-frequency double-fed line antenna

The invention relates to an antenna, in particular to an antenna with a single-sided dual-frequency double-fed line structure.

With the increasing popularity of wireless routers, wireless routers are currently equipped with antennas to provide good wireless transmission. Currently, wireless router antennas can be divided into two types, one is a built-in antenna fixed in the wireless router, and the other is assembly. An external antenna that can be replaced outside the wireless router. The external antenna is the mainstream of the current wireless router, because the wireless radiation field of the external antenna is complete, and the angle of use can be adjusted by the user, and the external antenna with different antenna gain can be replaced according to the environment, and the antenna is flexible in use. And the environment adapts to good features.

A conventional external antenna, as shown in FIGS. 17A and 17B, includes a substrate 91, a first low frequency component 92, a second low frequency component 93, a third low frequency component 94, and a first high frequency component 95. A second high frequency component 96, a third high frequency component 97, a first RF coaxial group 98 and a second RF coaxial group 99. The substrate 91 has an opposite front surface 911 and a rear surface 912. The first to third low frequency components 92-94 are spaced apart from the front surface 911. The first to third high frequency components 95-97 are spaced apart from the back surface 912. . The first low frequency component 92 is offset from the first high frequency component 95, the second low frequency component 93 is offset from the second high frequency component 96, and the third low frequency component 94 is offset from the third high frequency component 97. . The first RF coaxial group 98 is electrically connected to the first to third low frequency components 92-94, and the second RF coaxial group 99 is electrically connected to the first to third high frequency components.

The first to third low frequency components 92 to 94 form a low frequency antenna to receive/transmit a 2.4 GHz (Giga Hertz, GHz, hereinafter referred to as GHz) wireless signal, and the first to third high frequency components 95 to 97 form a high frequency. Antenna to receive/transmit 5 GHz wireless signals. Although the conventional external antenna can provide a function of receiving/transmitting 2.4 GHz or 5 GHz, the first to third low frequency components 92 to 94 and the first to third high frequency components 95 to 97 are respectively disposed on the front surface 911 and The back surface 912 is not only difficult to align in production, but also needs to increase the length of the substrate 91 and use a two-layer substrate in order to displace the low-frequency component and the high-frequency component, resulting in an increase in cost. Furthermore, if the positional deviation of the high frequency component and the low frequency component is set, the radiation field performance of the antenna changes. In addition, the first RF coaxial line group 98 and the second RF coaxial line group 99 are respectively fixed on the front side 911 and the back side 912 of the substrate 91 respectively, which may cause sway during use, thereby causing radiation field. Type performance deteriorates. Therefore, there is room for improvement in the prior art external antenna.

In view of the problems existing in the prior art, the present invention provides a single-sided dual-frequency dual-fed-line antenna through which high-frequency and low-frequency components are disposed on the same surface of the substrate, which not only reduces the setting deviation, but also degrades the performance, and also reduces the substrate. The length and the use of a single-layer substrate for omnidirectional and high-gain performance.

The antenna of the single-sided dual-frequency dual-fed line structure includes: a substrate having a first surface and a second surface opposite to each other, and a first end portion and a first portion a first opening, a second opening and a third opening arranged along the extending direction of the substrate and respectively extending through the first surface and the second surface; a radiating element disposed at the first end of the first surface; a second radiating element disposed on the first surface and located between the first end and the first opening; a radiating element disposed on the first surface and located between the first opening and the second opening; a fourth radiating element disposed on the first surface and disposed corresponding to the second radiating element a fifth radiating element disposed at the second end of the first surface; a first signal feeding group electrically connecting the first radiating element, the second radiating element and the third radiating element, the first One end of the signal feeder group passes through the third opening; a signal feeder group having opposite ends and an intermediate portion, the two ends are on one side of the first surface of the substrate, and electrically connecting the fourth radiating element and the fifth radiating element, respectively, the intermediate portion is connected Between the two ends, and passing through the first opening and the second opening, on one side of the second surface of the substrate.

According to the above configuration, the first to third radiating elements, the first signal feeding group and the third opening form a high frequency antenna, and the fourth to fifth radiating elements, the second signal feeding group and the first The first and second openings form a low frequency antenna, so that the novel antenna receives/transmits wireless signals of 2.4 GHz and 5 GHz to improve the omnidirectionality and high gain of the radiation field.

In addition, the first to fifth radiating elements are disposed on the first surface of the substrate, which can reduce positional errors, and the substrate can adopt a single-layer substrate to reduce manufacturing cost and improve manufacturing yield.

In addition, the first signal feeder group and the second signal feeder group are fixed through the first to third openings to avoid swaying to improve radiation field performance.

A preferred embodiment of the antenna of the novel single-sided dual-frequency dual-feeder structure, as shown in FIGS. 1 and 2, includes a substrate 10, a first radiating element 11, a second radiating element 12, and a third radiation. The component 13 , a fourth radiating component 14 , a fifth radiating component 15 , a first signal feeder group 16 and a second signal feeder group 17 .

The substrate 10 has a first surface 101 and a second surface 102 opposite to each other, and a first end portion 103 and a second end portion 104. The first surface 101 and the second surface 102 are a front surface and a back surface of the substrate 10 , and the first end portion 103 and the second end portion 104 are a front end portion and a bottom end portion of the substrate 10 . A first opening 105, a second opening 106 and a third opening 107 are formed on the substrate 10. The openings 105, 106, 107 are arranged along the length extension of the substrate 10. The second opening 106 is located between the first opening 105 and the third opening 106. The first opening 105 is located at an intermediate position of the substrate 10. The second opening 106 and the third opening 107 are located at the middle. At a second end 104 of the substrate 10 , a distance between the second opening 106 and the third opening 107 is smaller than a distance between the first opening 105 and the second opening 106 .

Referring to FIGS. 1 and 3, the first radiating element 11 is located at the first end 103 of the first surface 101. The first radiating element 11 includes a first radiating portion 111 and a second radiating portion 112, and has a U-shaped structure, respectively. The first radiating portion 111 has a first segment and two second segments. The first segment is connected between the two second segments, and the second segment of the first radiating portion 111 faces the first end. Part 103. The second radiating portion 112 has a first segment and two second segments. The first segment of the second radiating portion 112 is connected between the two second segments thereof, and the second radiating portion 112 is second. The section faces the second end 104. The first section of the second radiating portion 112 is adjacent and parallel to the first section of the first radiating portion 111, and between the first section of the first radiating portion 111 and the first section of the second radiating portion 112 Has a gap.

The first signal feeder group 16 includes a first signal feed line 161 and a second signal feed line 162. The first signal feed line 161 has a first end portion and a second end portion and a middle portion. The first signal feed line 161 includes a core wire 1611, an insulating layer 1612, a ground layer 1613 and a cladding layer. The insulating layer 1612 covers the core 1611. The ground layer 1613 covers the insulating layer 1612. The cladding layer 1614 covers the ground layer 1613. The insulating layer 1612 separates the core 1611 and the ground layer 1613. Avoid electrical connections and short circuits. The core wire 1611 of the first end of the first signal feed line 161 is fixed to the first section of the first radiating portion 111 through the solder 60 and electrically connected to the ground layer of the first end of the first signal feed line 161. 1613 is fixed to the first section of the second radiating portion 112 through the solder 60 and electrically connected.

Referring to FIGS. 1 and 4, the second radiating element 12 is disposed on the first surface 101 and positioned between the first radiating element 11 and the first opening 105. The second radiating element 12 includes a third radiating portion 121 and a fourth radiating portion 122, and has a U-shaped structure, respectively. The third radiating portion 121 includes a first segment and a second segment. The first segment of the third radiating portion 121 is connected between the two second segments thereof, and the second radiating portion 121 is second. The section faces the first end 103 of the substrate 10. The fourth radiating portion 122 includes a first segment and a second segment. The first segment of the fourth radiating portion 122 is connected between the second segments thereof, and the first portion of the fourth radiating portion 122 a section adjacent to and parallel to the first section of the third radiating portion 121, a gap between the first section of the fourth radiating portion 122 and the first section of the third radiating portion 121, the fourth radiation The second section of portion 122 faces the second end 104.

The ground layer 1613 of the middle portion of the first signal feed line 161 is fixed to the first portion of the third radiation portion 121 and the first portion of the fourth radiation portion 122 through the solder 60, and is electrically connected.

Referring to FIGS. 1 and 5 , the third radiating element 13 is disposed on the first surface and is located between the first opening 105 and the second opening 106 . The third radiating element 13 includes a fifth radiating portion 131, a sixth radiating portion 132, and a seventh radiating portion 133. The fifth radiating portion 131 has a U-shaped structure and includes a first segment and two second segments. The first segment of the fifth radiating portion 131 is connected between the two second segments thereof. The fifth radiation The second section of the portion 131 faces the first end 103 of the substrate 10. The sixth radiating portion 132 has an H-shaped structure and includes a first segment and two second segments. The first segment of the sixth radiating portion 132 is connected between the two second segments thereof. The sixth radiation The first section of the portion 132 is parallel to the first section of the fifth radiating portion 131. The seventh radiating portion 133 is disposed between the first segment and the second segment of the sixth radiating portion 132 and has a gap adjacent to and corresponding to the fifth radiating portion 131. The fifth radiating portion 131 has a gap between the sixth radiating portion 132 and the seventh radiating portion 133.

The core 1611 of the second end of the first signal feed line 161 is fixed to the seventh radiating portion 133 through the solder 60 and electrically connected; the ground layer 1613 of the second end of the first signal feed line 161 is transmitted through the solder 60. The first section of the fifth radiating portion 131 is fixed.

The second signal feed line 162 has a first end portion and a second end portion. The second signal feed line 162 is identical to the first signal feed line 161 and has a core line 1621, an insulating layer 1622, and a ground layer 1623. And a cladding layer 1624. The core wire 1621 of the first end of the second signal feed line 162 is fixed to the seventh radiating portion 133 through the solder 60, and electrically connected to the first signal feed line 161 and the seventh radiating portion 133, the second signal feed line The ground layer 1623 of the first end of the 162 is fixed to the first section of the sixth radiating portion 132 through the solder 60 and electrically connected. Referring to FIG. 2 together, the second end of the second signal feed line 162 passes through the third opening 107 and abuts on a side of the second surface 102 of the substrate 10, and from the substrate 10 The two ends 104 are pulled out.

Referring to FIGS. 1 and 4, the fourth radiating element 14 is disposed on the first surface 101 and disposed corresponding to the second radiating element 12. The fourth radiating element 14 includes an eighth radiating portion 141 and a ninth radiating element 142. The eighth radiating portion 141 is located inside the third radiating portion 121 and has a gap. The ninth radiating portion 142 is located at the The fourth radiating portion 122 has a gap inside and has a gap. The eighth radiating portion 141 has a U-shaped structure and has a first segment and two second segments. The first segment of the eighth radiating portion 141 is connected between the two second segments thereof, and is adjacent and parallel. In the first section of the third radiating portion 121, the second portion of the eighth radiating portion 141 faces the first end portion 103 of the substrate 10.

The ninth radiating portion 142 has a U-shaped structure and has a first segment and two second segments. The first segment of the ninth radiating portion 142 is connected between the two second segments thereof, and is adjacent and parallel. In the first section of the fourth radiating portion 122, the second portion of the ninth radiating portion 142 faces the second end portion 104 of the substrate 10.

The first section of the third radiating portion 121, the first segment of the fourth radiating portion 122, the first segment of the eighth radiating portion 141, and the first segment of the ninth radiating portion 142 are respectively Has a gap.

The second signal feeder group 17 includes a third signal feed line 171 and a fourth signal feed line 172. The third and fourth signal feed lines 171 and 172 are identical to the first and second signal feed lines 161 and 162. The third signal feed line 171 has a first end portion and a second end portion and an intermediate portion. The third signal feed line 171 includes a core wire 1711, an insulating layer 1712, a ground layer 1713 and a cladding layer. 1714, the core wire 1711 of the first end of the third signal feed line 171 is fixed to the first section of the eighth radiating portion 141 through the solder 60 and electrically connected, and the first end of the third signal feed line 171 is connected. The ground layer 1713 is fixed to the first section of the ninth radiation portion 142 through the solder 60 and electrically connected. Referring to FIG. 2, the second end of the third signal feed line 171 passes through the first opening 105, so that the middle portion of the third signal feed line 171 abuts the second surface 102 of the substrate 10, and then The second opening 106 is passed through the second opening 106 and electrically connected to the fifth radiating element 15.

Referring to FIG. 1 and FIG. 6 , the fifth radiating element 15 is disposed at the fourth end portion 104 of the first surface 101 , and the fifth radiating element includes a tenth radiating portion 151 , an eleventh radiating portion 152 , and A twelfth radiation portion 153.

The tenth radiation portion 151 has a first section and two second sections, and the first section of the tenth radiation part 151 is connected between the two second sections thereof, and the second section of the tenth radiation part 151 The segment faces the first end 103 of the substrate 10.

The eleventh radiation portion 152 has a first segment, two second segments and two third segments, and the first segment of the eleventh radiation portion 152 is connected between the two second segments thereof. The third section of the eleventh radiation portion 152 is respectively connected to a corresponding second section, and the first section of the eleventh radiation portion 152 is parallel to the first section of the tenth radiation portion 151, the tenth The second radiating portion 153 is disposed between the second portion and the first portion of the eleventh radiating portion 152 and is adjacent to and corresponds to the tenth radiating portion 151. The tenth radiation portion 151 has a gap between the eleventh radiation portion 152 and the twelfth radiation portion 153.

The core wire 1711 of the second end of the third signal feed line 171 is fixed to the twelfth radiation portion 153 via the solder 60 and electrically connected to the ground layer 1713 of the second end of the third signal feed line 171 through the solder. 60 is fixed to the first section of the tenth radiation portion 151 and electrically connected.

The fourth signal feed line 172 has a first end portion and a second end portion. The fourth signal feed line 172 includes a core wire 1721, an insulating layer 1722, a ground layer 1723, and a cladding layer 1724. The core wire 1721 of the first end of the fourth signal feed line 172 is fixed to the twelfth radiation portion 153 through the solder 60, and electrically connected to the third signal feed line 171 and the twelfth radiation portion 153, the fourth The grounding layer 1723 of the first end of the signal feed line 172 is fixed to the first section of the eleventh radiation portion 152 through the solder 60 and electrically connected. The second end of the fourth signal feed line 172 is from the substrate 10 The second end 104 is pulled out.

In the preferred embodiment, the first radiating element 11, the second radiating element 12, the third radiating element 13, the fourth radiating element 14, and the fifth radiating element 15 are respectively made of a metal material. The composition may be copper metal.

Please refer to FIG. 7 and FIG. 8 for the efficiency waveform diagram and gain waveform diagram of the new antenna applied in the 2.4 GHz (Giga Hertz, GHz, hereinafter referred to as GHz) frequency band, wherein the maximum efficiency is 74.49%, and the maximum is The gain value (Gain) is 3.96 antenna gain power value (dBi).

Please refer to Figures 9 to 11 for the planar field diagram of the novel antenna at 2.4 GHz. The ZX plane field diagrams of 2400MHz, 2450MHz and 2500MHz are plotted as shown in FIG. As shown in FIG. 10, ZY plane field patterns of 2400 MHz, 2450 MHz, and 2500 MHz are plotted. As shown in FIG. 11, XY plane field patterns of 2400 MHz, 2450 MHz, and 2500 MHz are plotted.

In the ZX plane, the ZY plane, and the XY plane, the maximum and maximum antenna gains at each frequency are described in the following table.

<TABLE border="1" borderColor="#000000" width="85%"><TBODY><tr><td> </td><td> ZX plane</td><td> ZY plane</td ><td> XY plane</td></tr><tr><td> frequency (MHz) </td><td> maximum (dB) </td><td> average (dB) </ Td><td> maximum value (dB) </td><td> average value (dB) </td><td> maximum value (dB) </td><td> average value (dB) </td> </tr><tr><td> 2400 </td><td> 3.94 </td><td> -2.80 </td><td> 2.24 </td><td> -3.80 </td>< Td> 3.85 </td><td> 2.61 </td></tr><tr><td> 2450 </td><td> 3.59 </td><td> -3.01 </td><td> 3.18 </td><td> -3.54 </td><td> 3.57 </td><td> 2.70 </td></tr><tr><td> 2500 </td><td> 2.89 < /td><td> -3.77 </td><td> 2.13 </td><td> -4.53 </td><td> 2.83 </td><td> 2.05 </td></tr>< /TBODY></TABLE>

According to FIG. 9 to FIG. 11 and the above table, the low frequency formed by the fourth to fifth radiating elements 14-15 of the novel antenna, the first opening 105, the second opening 106 and the second signal feeding group 17 is known. The antenna is configured to improve the receiving/transmitting performance of the low frequency wireless signal, and the second signal feeding group 17 is fixed through the first opening 105 and the second opening 106 to stabilize the antenna field performance.

Please refer to FIG. 12 and FIG. 13 for the efficiency waveform diagram and gain waveform diagram of the novel antenna applied in the 5 GHz frequency band, wherein the maximum efficiency is 73.0%, and the maximum gain value (Gain) is 5.93 dBi.

Please refer to Figures 14 to 16, which are plane field diagrams of the novel antenna at 5 GHz. The ZX plane pattern of 5150MHz, 5500MHz and 5850MHz is plotted as shown in Fig. 14. As shown in FIG. 15, ZY plane field patterns of 5150 MHz, 5500 MHz, and 5850 MHz are plotted. As shown in FIG. 16, XY plane field patterns of 5150 MHz, 5500 MHz, and 5850 MHz are plotted.

In the ZX plane, the ZY plane, and the XY plane, the maximum and maximum antenna gains at each frequency are described in the following table.         <TABLE border="1" borderColor="#000000" width="85%"><TBODY><tr><td> </td><td> ZX plane</td><td> ZY plane</td ><td> XY plane</td></tr><tr><td> frequency (MHz) </td><td> maximum (dB) </td><td> average (dB) </ Td><td> maximum value (dB) </td><td> average value (dB) </td><td> maximum value (dB) </td><td> average value (dB) </td> </tr><tr><td> 5150 </td><td> 5.22 </td><td> -2.66 </td><td> 4.81 </td><td> -3.60 </td>< Td> 5.31 </td><td> 4.55 </td></tr><tr><td> 5500 </td><td> 4.88 </td><td> -2.96 </td><td> 3.97 </td><td> -3.65 </td><td> 5.24 </td><td> 4.25 </td></tr><tr><td> 5850 </td><td> 3.35 < /td><td> -3.06 </td><td> 4.32 </td><td> -3.11 </td><td> 4.66 </td><td> 3.52 </td></tr>< /TBODY></TABLE>

According to FIGS. 14 to 16 and the above table, the high frequency antenna formed by the first to third radiating elements 11 to 13 of the novel antenna, the third opening 107 and the first signal feeding group 16 is used to raise the high frequency. The performance of receiving/transmitting the wireless signal, and fixing the first signal feeder set 16 through the third opening 107 to stabilize the antenna field performance.

According to the above structure, the novel has the following characteristics:

1. The fourth to the fifth radiating elements 14-15 are formed by the first to the third radiating elements 11-13, the third opening 107, and the first signal feeding group 16 The low frequency antenna formed by the first opening 105, the second opening 106 and the second signal feeding group 17 enhances the wireless signal receiving/transmitting performance of the antenna, thereby improving the omnidirectionality and the high gain. efficacy.

2. The substrate 10 is provided with the first to the fifth radiating elements 11-15 on one side, which can effectively reduce the cost and achieve the effect of dual-frequency double-feeding into the high-gain antenna.

3. By uniformly arranging the first to the fifth radiating elements 11-15 on the first surface 101 of the substrate 10, the deviation of the position between the radiating elements can be improved to cause the antenna field performance to deteriorate, thereby improving Create yield.

4. The second signal feeder group 17 is fixed through the first opening 105 and the second opening 106, and the third opening 107 fixes the first signal feeder group 16 to reduce signal feeder sway and thereby raise the antenna. Field performance.

10‧‧‧Substrate
101‧‧‧ first surface
102‧‧‧ second surface
103‧‧‧First end
104‧‧‧second end
105‧‧‧First opening
106‧‧‧Second opening
107‧‧‧ third opening
11‧‧‧First radiating element
111‧‧‧First Radiation Department
112‧‧‧Second Radiation Department
12‧‧‧Second radiating element
121‧‧‧ Third Radiation Department
122‧‧‧Fourth Radiation Department
13‧‧‧ Third radiating element
131‧‧‧Five Radiation Department
132‧‧‧Sixth Radiation Department
133‧‧‧The Seventh Radiation Department
14‧‧‧Fourth radiating element
141‧‧‧The Eighth Radiation Department
142‧‧‧Ninth Radiation Department
15‧‧‧ fifth radiating element
151‧‧10th Radiation Department
152‧‧‧Eleventh Radiation Department
153‧‧‧Twelfth Radiation Department
16‧‧‧First Signal Feeder Group
161‧‧‧first signal feeder
1611‧‧‧core wire
1612‧‧‧Insulation
1613‧‧‧ Grounding layer
1614‧‧‧Cladding
162‧‧‧second signal feeder
1621‧‧‧core
1622‧‧‧Insulation
1623‧‧‧ Grounding layer
1624‧‧‧Cladding
17‧‧‧Second Signal Feeder Group
171‧‧‧ third signal feeder
1711‧‧‧core
1712‧‧‧Insulation
1713‧‧‧ Grounding layer
1714‧‧‧Cladding
172‧‧‧fourth signal feeder
1721‧‧‧core
1722‧‧‧Insulation
1723‧‧‧ Grounding layer
1724‧‧‧Cladding
60‧‧‧ Solder
91‧‧‧Substrate
92‧‧‧First low frequency component
93‧‧‧Second low frequency component
94‧‧‧ Third low frequency component
95‧‧‧First high frequency component
96‧‧‧Second high frequency component
97‧‧‧ Third high frequency component
98‧‧‧First RF coaxial cable set
99‧‧‧Second RF coaxial cable set

Figure 1 is a front elevational view of the antenna of the preferred embodiment of the present invention. Figure 2 is a rear elevational view of the antenna of the preferred embodiment of the present invention. Figure 3 is an enlarged view of a first radiating element of the antenna of the preferred embodiment of the present invention. 4 is an enlarged view of a second radiating element and a fourth radiating element of the antenna of the preferred embodiment of the present invention. Figure 5 is an enlarged view of a third radiating element of the antenna of the preferred embodiment of the present invention. Figure 6 is an enlarged view of a fifth radiating element of the antenna of the preferred embodiment of the present invention. Figure 7 is a graph showing the efficiency waveform of the antenna of the preferred embodiment of the present invention in the 2.4 GHz band. Figure 8 is a diagram showing the gain waveform of the antenna of the preferred embodiment of the present invention in the 2.4 GHz band. Figure 9 is a ZX plane pattern of the antenna of the preferred embodiment of the present invention in the 2.4 GHz band. Figure 10 is a ZY plane pattern of the antenna of the preferred embodiment of the present invention in the 2.4 GHz band. Figure 11 is an XY plane pattern of the antenna of the preferred embodiment of the present invention in the 2.4 GHz band. Figure 12 is a graph showing the efficiency of the antenna of the preferred embodiment of the present invention in the 5 GHz band. Figure 13 is a diagram showing the gain waveform of the antenna of the preferred embodiment of the present invention in the 5 GHz band. Figure 14 is a ZX plane pattern of the antenna of the preferred embodiment of the present invention in the 5 GHz band. Figure 15 is a ZY plane pattern of the antenna of the preferred embodiment of the present invention in the 5 GHz band. Figure 16: is an XY plane field diagram of the antenna of the preferred embodiment of the present invention in the 5 GHz band. Figure 17A is a front elevational view of a conventional external antenna. Figure 17B is a schematic rear view of a conventional external antenna.

10‧‧‧Substrate

101‧‧‧ first surface

103‧‧‧First end

104‧‧‧second end

105‧‧‧First opening

106‧‧‧Second opening

107‧‧‧ third opening

11‧‧‧First radiating element

111‧‧‧First Radiation Department

112‧‧‧Second Radiation Department

12‧‧‧Second radiating element

121‧‧‧ Third Radiation Department

122‧‧‧Fourth Radiation Department

13‧‧‧ Third radiating element

131‧‧‧Five Radiation Department

132‧‧‧Sixth Radiation Department

14‧‧‧Fourth radiating element

141‧‧‧The Eighth Radiation Department

142‧‧‧Ninth Radiation Department

15‧‧‧ fifth radiating element

151‧‧10th Radiation Department

152‧‧‧Eleventh Radiation Department

16‧‧‧First Signal Feeder Group

161‧‧‧first signal feeder

162‧‧‧second signal feeder

17‧‧‧Second Signal Feeder Group

171‧‧‧ third signal feeder

172‧‧‧fourth signal feeder

60‧‧‧ Solder

Claims (10)

An antenna for a single-sided dual-frequency dual-fed line structure includes: a substrate having a first surface and a second surface opposite to each other, a first end portion and a second end portion, and a substrate is formed along the substrate a first opening, a second opening and a third opening are arranged in the extending direction of the substrate and penetrate the first surface and the second surface respectively; a first radiating element is disposed on the first surface a first radiating element disposed on the first surface and located between the first end and the first opening; a third radiating element disposed on the first surface And located between the first opening and the second opening; a fourth radiating element disposed on the first surface and disposed corresponding to the second radiating element; a fifth radiating element disposed in the a second end of the first surface; a first signal feeder group electrically connecting the first radiating element, the second radiating element and the third radiating element, and one end of the first signal feeding group passes through the third a second signal feeder group having opposite ends and a middle a second end portion on a side of the first surface of the substrate, and electrically connecting the fourth radiating element and the fifth radiating element respectively, the intermediate portion being connected between the two ends and passing through the An opening and the second opening are located on one side of the second surface of the substrate. The antenna of the single-sided dual-frequency dual-fed line structure of claim 1, wherein the first radiating element comprises: a first radiating portion having a first segment and two second segments, the first segment Connected between two second sections thereof; a second radiating portion having a first section and two second sections, the first section of the second radiating section being connected between the two second sections thereof, The first section of the second radiating portion is adjacent and parallel to the first section of the first radiating portion. The antenna of the single-sided dual-frequency dual-fed line structure of claim 2, wherein the second radiating element comprises: a third radiating portion having a first segment and two second segments, the third radiating portion The first section is connected between the two second sections; a fourth radiating section has a first section and two second sections, and the first section of the fourth radiating section is connected to the second part thereof The first section of the fourth radiating portion is adjacent and parallel to the first section of the third radiating portion. The antenna of the single-sided dual-frequency dual-fed line structure according to claim 3, wherein the third radiating element comprises: a fifth radiating portion having a first segment and two second segments, the fifth radiating portion The first section is connected between the two second sections; a sixth radiating section has a first section and two second sections, and the first section of the sixth radiating section is connected to the second part thereof Between the segments, the first segment of the sixth radiating portion is parallel to the first segment of the fifth radiating portion; a seventh radiating portion is disposed in the first segment and the second region of the sixth radiating portion Between the segments, and adjacent to the fifth radiating portion. The antenna of the single-sided dual-frequency dual-fed line structure of claim 4, wherein the first signal feeder group comprises: a first signal feed line having a first end portion, a second end portion and a middle portion The first signal feed line includes: a core wire; an insulating layer covering the core wire; a ground layer covering the insulating layer; a cladding layer covering the ground layer; the first of the first signal feed line The core wire of the end portion is electrically connected to the first segment of the first radiating portion, and the ground layer of the first end portion of the first signal feeding wire is electrically connected to the first segment of the second radiating portion; the middle portion of the first signal feeding line The grounding layer of the portion is electrically connected to the first section of the third radiating portion and the first section of the fourth radiating portion; the core of the second end of the first signal feeding line is electrically connected to the seventh radiating portion, the first A ground plane of the second end of the signal feed line electrically connects the first section of the fifth radiating portion. The antenna of the single-sided dual-frequency dual-fed line structure of claim 5, wherein the first signal feeder group further comprises: a second signal feed line having a first end portion and a second end portion; The second signal feed line includes: a core wire; an insulating layer covering the core wire of the second signal feed line; a ground layer covering the insulating layer of the second signal feed line; and a cladding layer covering the second signal feed line a grounding layer; the core of the first end of the second signal feeding line is electrically connected to the seventh radiating portion, and the grounding layer of the first end of the second signal feeding line is electrically connected to the first portion of the sixth radiating portion, The second end of the second signal feed line passes through the third opening and is disposed on one side of the second surface of the substrate and is drawn from the second end of the substrate. The antenna of the single-sided dual-frequency dual-fed line structure according to claim 6, wherein the fourth radiating element comprises: an eighth radiating portion disposed inside the third radiating portion, the eighth radiating portion having a first a segment and two second segments, the first segment of the eighth radiating portion being connected between the two second segments; a ninth radiating portion disposed inside the fourth radiating portion, the ninth radiating portion having a first segment and a second segment, the first segment of the ninth radiating portion being connected between the two second segments thereof, the first segment of the ninth radiating portion being parallel to the eighth radiating portion The first section. The antenna of the single-sided dual-frequency dual-fed line structure according to claim 7, wherein the fifth radiating element comprises: a tenth radiating portion having a first segment and two second segments, the tenth radiating portion The first section is connected between the two second sections; an eleventh radiation part having a first section, two second sections and two third sections, the first of the eleventh radiation sections The segment is connected between the two second segments thereof, and the second segment of the eleventh radiation portion is respectively connected to a corresponding third segment, and the first segment of the eleventh radiation portion is parallel to the tenth radiation a first section of the portion; a twelfth radiating portion disposed between the first section and the second section of the eleventh radiating portion to correspond to the tenth radiating portion. The antenna of the single-sided dual-frequency dual-feed line structure of claim 8, wherein the second signal feeder group comprises: a third signal feed line having a first end portion, a second end portion and an intermediate portion The third signal feed line includes: a core wire; an insulating layer covering the core wire of the third signal feed line; a ground layer covering the insulating layer of the third signal feed line; a cladding layer covering the first a grounding layer of the third signal feeder; the core of the first end of the third signal feeding line is electrically connected to the first section of the eighth radiating portion, and the grounding layer of the first end of the third signal feeding line is electrically connected to the ninth a first section of the radiating portion, the second end of the third signal feeding line passes through the first opening, the intermediate portion is disposed on one side of the second surface of the substrate, and the second signal feeding line is second The end portion passes through the second opening to electrically connect the fifth radiating element; the core of the second end of the third signal feeding line is electrically connected to the twelfth radiating portion, and the second end of the third signal feeding line The ground layer electrically connects the first section of the tenth radiation portion. The second signal feeder group further includes: a fourth signal feed line having a first end portion and a second end portion; The signal feed line includes: a core wire; an insulating layer covering the core wire of the fourth signal feed line; a ground layer covering the insulating layer of the fourth signal feed line; and a cladding layer covering the fourth signal feed line The ground line of the first end of the fourth signal feed line is electrically connected to the twelfth radiation portion, and the ground layer of the first end of the fourth signal feed line is electrically connected to the first portion of the eleventh radiation portion. The second end of the fourth signal feed line is drawn from the second end of the substrate.