TWI614941B - Triple feed point type and eight-band antenna for lte-a smart phone - Google Patents

Abstract

The present invention provides a three-input eight-band antenna suitable for an LTE-A smart phone, through a special form of a first radiating portion, a second radiating portion, a first segment portion, a third radiating portion, and a fourth radiating portion. a first branch portion, a second branch portion, a second segment portion, a third segment portion, a fourth segment portion, a fifth segment portion, and a sixth segment portion are disposed on the first surface of the antenna base and Two surfaces to achieve high efficiency and high gain eight-band resonance. The antenna of this case is not only small in size, fixed in appearance structure, mechanically strong, and can reduce manufacturing cost. It can be easily combined with LTE-A smart phone, and then provides eight frequency bands for LTE-A smart phone to operate.

Description

Three-feed point eight-band antenna for LTE-A smart phones

This case relates to an antenna suitable for LTE-A smart phones, especially a three-feed point eight-band antenna suitable for LTE-A smart phones.

With the rapid development of wireless communication technology, LTE-A smart mobile phone devices have been widely used by the public, and wireless communication technology has been developed to date, and its communication technology standards have been evolved from the original 2G and 3G to 4G, and due to laws and regulations around the world. It is stipulated that each frequency band is distinguished as the area for use. However, since LTE-A smart phones mainly use antennas to transmit and receive wireless messages, the LTE-A smart phone can be used to talk and transmit data. Therefore, when LTE-A smart phones need to be used in different frequency bands around the world, the antenna of the LTE-A smart phone must meet the needs of different frequency bands around the world.

Take the international high-speed wireless communication standard of the current 4G specification Long Term Evolution - Advanced (LTE-A) as an example, which can select up to 43 kinds of frequency bands for use, so the combination of frequency bands used in different parts of the world changes. More diverse. If the LTE-A smart phone is intended to be used in different frequency bands around the world, the antenna of the LTE-A smart phone must have the requirement to meet the functions of multiple frequency bands. On the other hand, as the additional functions of the LTE-A smart phone device continue to increase, the components of the LTE-A smart phone device continue to increase, but the LTE-A smart phone device is still compact and portable, so each component is miniaturized. The need to accumulate.

However, the existing antenna structure can cover a limited frequency band and cannot be further miniaturized, because it is necessary to develop a new antenna architecture to solve the problems of the prior art and meet the application requirements.

The purpose of this case is to provide a three-input eight-band antenna for LTE-A smart phones, which can reduce the physical size and operate in eight bands at the same time or in the specific frequency range required, which can not only reduce manufacturing. Cost, and more efficiency.

Another object of the present invention is to provide a three-input eight-band antenna suitable for LTE-A smart phones, which has a small size, a fixed external structure, mechanical strength, and can be easily combined with an LTE-A smart phone. Eight frequency bands are available for LTE-A smartphones to operate.

Another objective of the present invention is to provide a three-input eight-band antenna suitable for LTE-A smart phones, which can meet the LTE-A specification standard and simultaneously provide eight frequency bands for LTE-A smart phone operation or application. . In the specific frequency range required, the ratio of standing wave ratio between each frequency band is small, which can effectively improve the performance of the eight-band resonance and increase the gain.

To achieve the foregoing objectives, the present invention provides a three-input eight-band antenna suitable for an LTE-A smart phone, the structure comprising an antenna base, a first metal component and a second metal component. The antenna base has a first surface and a second surface. The first metal component is disposed on the first surface and the second surface of the antenna base. The first metal component includes a first extension, a first radiation, a second radiation, and a third radiation. The first extending portion has a first feeding end, a first connecting portion and a second connecting portion, wherein the first feeding end, the first connecting portion and the second connecting portion are disposed on the first surface, and the first feeding The end system is designed to feed in signals. The first radiating portion is disposed on the first surface and connected to the first connecting portion, and is configured to generate and receive a wireless signal in a first frequency band. The second radiating portion is connected to the first connecting portion and extends to the second surface, and includes a first segment portion and is configured to generate and receive a second frequency band of the wireless signal. The third radiating portion is disposed on the first surface and connected to the second connecting portion, and is configured to generate and receive a third frequency band of the wireless signal. In another aspect, the second metal component is disposed on the antenna substrate and spaced apart from the first metal component. The second metal component further includes a second extension, a third extension, and a fourth radiation. The second extending portion has a second feeding end and a third connecting portion, wherein the second feeding end and the third connecting portion are disposed on the first surface, and the second feeding end is configured to feed the signal. The third extending portion has a third feeding end and a fourth connecting portion, wherein the third feeding end and the fourth connecting portion are disposed on the first surface, the third feeding end is configured to feed the signal, and the fourth connection is The segment is connected to the third connecting segment. One side of the fourth radiating portion is connected to the third connecting portion and the fourth connecting portion, and the other side of the fourth radiating portion further has a first branch portion and a second branch portion, from the other side of the fourth radiating portion Externally extending, the first branch portion and the second branch portion are respectively a trapezoidal structure and a strip-like structure. The first branch portion includes a second segment portion and a third segment portion, and the second segment portion and the third segment portion are disposed on the second surface, and are respectively configured to generate a first Wireless signal transmission and reception in the four-band and fifth-band. The second branch portion includes a fourth segment portion, a fifth segment portion, and a sixth segment portion. The fourth segment portion and the fifth segment portion are disposed on the second surface, and are disposed in the fourth radiation direction, wherein the sixth segment portion is disposed relative to the fourth segment portion and extends from the second surface toward the first surface. The fourth segment portion, the fifth segment portion, and the sixth segment portion are respectively configured to transmit and receive wireless signals of a sixth frequency band, a seventh frequency band, and an eighth frequency band.

Some exemplary embodiments embodying the features and advantages of the present invention are described in detail in the following description. It is to be understood that the present invention is capable of various modifications in the various aspects of the present invention, and is not intended to

Figure 1 is a three-input eight-band antenna of the LTE-A smart phone of the preferred embodiment of the present invention. As shown in FIG. 1, the three-input point eight-band antenna 2 (hereinafter referred to as antenna 2) of the LTE-A smart phone of the present invention includes an antenna base 21, a first metal element 22, and a second metal element 23. The antenna base 21 has a first surface 21a and a second surface 21b. The first metal component 22 is disposed on the first surface 21a and the second surface 21b of the antenna base 21. The first metal element 22 includes a first extension portion 221, a first radiation portion 222, a second radiation portion 223, and a third radiation portion 224. The first extending portion 221 has a first feeding end 221a, a first connecting portion 221b, and a second connecting portion 221c, wherein the first feeding end 221a, the first connecting portion 221b and the second connecting portion 221c are disposed on the first surface 21a And the first feed end 221a is configured to feed the signal. The first radiating portion 222 is disposed on the first surface 21a, and is connected to the first connecting portion 221b, and is configured to generate and receive a wireless signal in a first frequency band. The second radiating portion 223 is connected to the first connecting portion 221b and extends to the second surface 21b, and includes a first segment portion 2231, and is configured to generate and receive a second frequency band. The third radiating portion 224 is disposed on the first surface 21a, is connected to the second connecting portion 221c, and is configured to generate and receive a third frequency band of wireless signals.

The second metal component 23 is disposed on the antenna base 21 and spaced apart from the first metal component 22. The second metal member 23 includes a second extension portion 231, a third extension portion 232, and a fourth radiation portion 233. The second extending portion 231 has a second feeding end 231a and a third connecting portion 231b, wherein the second feeding end 231a and the third connecting portion 231b are disposed on the first surface 21a, and the second feeding end 231a is configured to feed Incoming signal. The third extending portion 232 has a third feeding end 232a and a fourth connecting portion 232b, wherein the third feeding end 232a and the fourth connecting portion 232b are disposed on the first surface 21a, and the third feeding end 232a is configured to feed The signal, and the fourth connecting portion 232b of the third extending portion 232 is connected to the third connecting portion 231b of the second extending portion 231. One side of the fourth radiating portion 233 is connected to the third connecting portion 231b and the fourth connecting portion 232b. The other side of the fourth radiating portion 233 further has a first branch portion 2331 and a second branch portion 2332 extending outward from the other side of the fourth radiating portion 233, and the first branch portion 2331 and the second branch portion 2332 respectively It is a trapezoidal structure and a strip structure. The first branch portion 2331 is disposed on the second surface 21b. The second branching portion 2332 extends from the first surface 21a to the second surface 21b after the fourth radiating portion 233 extends from the first surface 21a and then along the recess 2332a of the antenna base 21. In the embodiment, the first branch portion 2331 includes a second segment portion 2333 and a third segment portion 2334. The second segment portion 2333 and the third segment portion 2334 are disposed on the second surface 21b. The first branch portion 2331 is respectively configured to transmit and receive wireless signals of a fourth frequency band and a fifth frequency band. The second branch portion 2332 includes a fourth segment portion 2335, a fifth segment portion 2336, and a sixth segment portion 2337. The fourth segment portion 2335 and the fifth segment portion 2336 are disposed on the second surface 21b, and are sequentially connected to the fourth radiation 233, and the sixth segment portion 2337 is disposed relative to the fourth segment portion 2335. The surface 21b extends toward the first surface 21a, wherein the fourth segment portion 2335, the fifth segment portion 2336, and the sixth segment portion 2337 are respectively configured with the second branch portion 2332 to generate a sixth frequency band and a seventh frequency band. Transceiver with a wireless signal in an eighth frequency band.

Referring to FIG. 1 again, in the antenna 2 of the present invention, the fourth radiating portion 233 of the second metal member 23 is directed away from the first radiating portion 222, the second radiating portion 223, and the third radiating portion of the first metal member 22. The direction of 224 extends outward. In the first metal member 22, the first connecting portion 221b and the second connecting portion 221c are preferably perpendicular to each other. The first connecting section 221b of the first metal component 22 and the third connecting section 231b of the second metal component 23 are disposed in parallel. The second segment portion 2333 of the first branch portion 2331 is substantially perpendicular to the third segment portion 2334. In the first metal component 22, the first segment portion 2231 has a first segment portion 2231a, a second segment portion 2231b, and a third segment portion 2231c, which are connected to each other and form a dome-shaped structure. One of the openings 2232 of the structure faces the second radiating portion 223. In the second metal component 23, the sixth section 2337 has a fourth section 2337a, a fifth section 2337b, a sixth section 2337c, and a seventh section 2337d. The structure is open, and one of the openings 2338 of the groove-like structure faces the fourth radiating portion 233. The length of the first branch portion 2331 is smaller than the length of the second branch portion 2332. In addition, the fifth segment portion 2336 has an eighth segment portion 2336a and a ninth segment portion 2336b which are connected in parallel to form an L-shaped structure. The fifth section 2336 further has two sides 2336c, 2336d which are parallel to one side 2333a of the second section 2333 and one side 2334a of the third section 2334, respectively. In this embodiment, the first surface 21a and the second surface 21b are in a perpendicular relationship to each other. It should be noted that the first connecting segment 221b of the first metal component 22 of the antenna 2 of the present invention and the third connecting segment 231b of the second metal component 23 are parallel to each other and arranged at a predetermined gap, and the fourth connection is arranged. The segment 232b is extended outwardly from the third connecting portion 231b, and is then bent back to the third feeding end 232a in a plurality of steps, and the first connecting portion 221b and the third connecting portion 231b are respectively strip-shaped structures. The fourth connecting segment 232b is a coupling component, such as an inductive component, to achieve impedance matching by the characteristics of the coupling component, thereby improving the overall performance and improving the overall gain. In addition, the second feeding end 231a and the third feeding end 232a are connected to the path of the fourth connecting portion 232b of the third extending portion 232 via the third connecting portion 231b of the second extending portion 231. In some embodiments, the first feed end 221a and the third feed end 232a are configured to feed the ground signal, and the second feed end 231a is configured to feed the high frequency signal.

In this embodiment, the first radiating portion 222 is configured to generate a wireless signal transmission and reception in the first frequency band by resonance, wherein the frequency of the first frequency band is between 3410 MHz and 3590 MHz. The second radiating portion 223 is substantially combined with the first segment portion 2231, and is connected in a first segment portion 2231a, a second segment portion 2231b, and a third segment portion 2231c, and constitutes a dome-shaped structure. One of the openings 2232 of the dome-shaped structure faces the second radiating portion 223, and is configured to resonate to generate a wireless signal transmission and reception in a second frequency band, wherein the frequency of the second frequency band is between 1920 MHz and 2170 MHz. The third radiating portion 224 is configured to generate a third frequency band of the wireless signal transmission and reception, wherein the frequency of the third frequency band is between 2500 MHz and 2690 MHz. In the embodiment, the fourth radiating portion 233 is combined with the first branch portion 2331 and the second segment portion 2333 is configured to generate a fourth frequency band for transmitting and receiving wireless signals, wherein the frequency of the fourth frequency band is between 1850MHz to 1990MHz. The fourth radiating portion 233 and the first branch portion 2331 are combined with the third segment portion 2334 to form a fifth frequency band for transmitting and receiving wireless signals, wherein the frequency of the fifth frequency band is between 1710 MHz and 1880 MHz. Furthermore, the fourth radiating portion 233 and the second branch portion 2332 are combined with the fourth segment portion 2335 to generate a sixth frequency band for transmitting and receiving wireless signals, wherein the frequency of the sixth frequency band is between 880 MHz and 960 MHz. . The fourth radiating portion 233 and the second branch portion 2332 are further configured to be combined with the fifth segment portion 2335 and the fifth segment portion 2336 to generate a wireless signal transmission and reception in the seventh frequency band by resonance, wherein the frequency of the seventh frequency band Between 824MHz and 894MHz. The fourth radiating portion 233 and the second branch portion 2332 are combined with the sixth segment portion 2337, and the sixth segment portion 2337 has a fourth segment portion 2337a, a fifth segment portion 2337b, a sixth segment portion 2337c, and a seventh segment portion. 2337d is connected to form a slot-like structure, and an opening 2338 of the slot-shaped structure faces the fourth radiating portion 233, and is configured to resonate to generate a wireless signal transmission and reception in an eighth frequency band, wherein the frequency of the eighth frequency band Between 704MHz and 746MHz. In other embodiments, the frequency of the first frequency band has a first uplink frequency band between 3410 MHz and 3490 MHz and a first download frequency band between 3510 MHz and 3590 MHz, and the second frequency band has a second uplink frequency band between 1920 MHz and 1980 MHz. And a second download frequency band between 2110MHz and 2170MHz, the third frequency band has a third upload frequency band between 2500MHz and 2570MHz and a third download frequency band between 2620MHz and 2690MHz, and the fourth frequency band has a fourth upload frequency band. The first frequency band is between 1910 MHz and 1990 MHz at 1850 MHz to 1910 MHz, and the fifth frequency band has a fifth upload frequency band between 1710 MHz and 1785 MHz and a fifth download frequency band between 1805 MHz and 1880 MHz, and the sixth frequency band has a first frequency band. The six upload frequency bands are between 880 MHz and 915 MHz and a sixth download frequency band is between 925 MHz and 960 MHz, and the seventh frequency band has a seventh upload frequency band between 824 MHz and 849 MHz and a seventh download frequency band between 869 MHz and 894 MHz, and the first The eight-band has an eighth upload band between 70MHz and 716MHz and an eighth download band between 734MHz and 746MHz.

Figure 2 is a partial enlarged view of the three-input eight-band antenna of the LTE-A smart phone shown in Figure 1. As shown in FIGS. 1 and 2, in the present embodiment, the first metal component 22 and the second metal component 23 of the antenna 2 of the present invention are disposed on the antenna base 21, wherein the antenna substrate 21 is further composed of, for example, but not limited to, a propylene. The nitrile-butadiene-styrene copolymer is composed of ABS plastic with a supporting structure supporting function. The antenna base 21 of the antenna 2 of the present invention has a first via hole 211, a second via hole 212 and a third via hole respectively at positions corresponding to the first feed end 221a, the second feed end 231a and the third feed end 232a. 213, wherein the first via hole 211, the second via hole 212, and the third via hole 213 are both penetrated through the antenna base 21, and the inner walls of the first via hole 211, the second via hole 212, and the third via hole 213 are For example, but not limited to electroplating, a metal material having conductive properties is electroplated thereon, so that the first via hole 211, the second via hole 212, and the third via hole 213 have conductivity. One port of the first via hole 211, the second via hole 212 and the third via hole 213 is electrically connected to the first feed end 221a, the second feed end 231a and the third feed end 232a, respectively.

Figure 3 is a schematic diagram showing the reverse structure of the three-input eight-band antenna of the LTE-A smart phone shown in Figure 1. As shown in the first, second and third figures, the first metal component 22 and the second metal component 23 of the antenna 2 of the present invention are disposed on the front surface of the antenna base 21, and the reverse side of the antenna base 21 has a first guiding end 214, The second guiding end 215 and the third guiding end 216 are separated from each other by the first guiding end 214, the second guiding end 215 and the third guiding end 216. In some embodiments, the other ports of the first via 211, the second via 212 and the third via 213 are respectively connected to the first guiding end 214, the second guiding end 215 and the third guiding end 216. The first via 211, the second via 212, and the third via 213 can be connected to the first via 214 and the second via, for example, but not limited to, a conductive metal layer connection or a flying wire connection. The terminal 215 is electrically connected to the third guiding end 216. Therefore, when the antenna 2 of the present invention is assembled on the body of the LTE-A smart phone, the wireless signal processing circuit of the LTE-A smart phone 1 can pass through the first guiding end 214 and the second guiding end 215 and the first The grounding signal and the high frequency signal are fed to the first feeding end 221a and the second feeding end 231a by the three guiding ends 216 and the guiding paths of the first via holes 211, the second via holes 212 and the third via holes 213. And the third feeding end 232a, thereby achieving the function of transmitting and receiving wireless RF signals.

Figure 4 is a schematic diagram of an eight-band antenna of the preferred embodiment of the present invention applied to an LTE-A smart phone. As shown in FIG. 4, the LTE-A smart phone 1 includes a body 10, a cover 11 and an antenna 2, wherein the cover 11 is coupled to the body 10, and the antenna 2 is mounted and fixed in the LTE-A smart phone 1. The LTE-A smart phone 1 is enabled to select an application among the eight frequency bands provided by the antenna 2. It should be noted that the antenna 2 of the present invention is disposed through the first metal element 22 and the second metal element 23, and the first radiating portion 222, the second radiating portion 223, the first segment portion 2231, the third radiating portion 224, and the Four radiation portion 233, first branch portion 2331, second branch portion 2332, second segment portion 2333, third segment portion 2334, fourth segment portion 2335, fifth segment portion 2336, and sixth segment portion The signal transmission path of the 2337 architecture, and the wireless signal transmission and reception in the eight frequency bands conforming to the LTE-A specification.

Figure 5 is a comparison diagram of the first group of standing wave ratio versus frequency variation generated by the three-input eight-band antenna of the preferred embodiment of the present invention, and Figure 6 is the third feeding point of the preferred embodiment of the present invention. A comparison diagram of the second group of standing wave ratio versus frequency variation generated by the band antenna, and FIG. 7 is a comparison of the third set of standing wave ratio versus frequency variation generated by the three-input eight-band antenna of the preferred embodiment of the present invention. And FIG. 8 is a comparison diagram of the standing wave ratio versus frequency variation of the fourth group generated by the three-input eight-band antenna of the preferred embodiment of the present invention. As shown in Figures 5 to 8, the A-band, B-band, and C-band bands in Figure 5 are categorized as the eighth band (704 MHz to 746 MHz), the seventh band (824 MHz to 894 MHz), and the sixth band ( 880MHz to 960MHz), the D-band, E-band and F-band in Figure 6 are the fifth frequency band (1710MHz to 1880MHz), the fourth frequency band (1850MHz to 1990MHz) and the second frequency band (1920MHz to 2170MHz), respectively. The G-band in the figure is the third frequency band (2500MHz to 2690MHz), and the H-band in Figure 8 is the first frequency band (3410MHz to 3590MHz). The vertical axis of Fig. 5 to Fig. 8 is the standing wave ratio (SWR) of the antenna 2 of the present invention, and the gain value of the return loss is linear with each other, and can be calculated by calculation. The standing wave ratio is converted to the gain value of the foldback loss, and the horizontal axis is the resonant frequency of the antenna 2 of the present case. The standing wave ratio value varies with the frequency. Generally, the frequency band with a standing wave ratio value of, for example, 3 or less represents that the antenna has a good effect in the frequency band. Therefore, as shown in the fifth to eighth figures, in the embodiment of the present invention, The standing wave ratio of the A to H frequency band is far less than 3. Therefore, the antenna 2 of the present invention can indeed generate the eighth frequency band A to H based on the existing LTE-A standard and the use standard in the field, that is, the first frequency band to the eighth frequency is applicable. The frequency band, and the frequency bands generated by antenna 2 in this case all have good performance.

In summary, the three-band antenna of the LTE-A smart phone in this case transmits the first radiation part, the second radiation part, the first section part, the third radiation part, and the fourth radiation in a special form. The first branch portion, the second branch portion, the second segment portion, the third segment portion, the fourth segment portion, the fifth segment portion, and the sixth segment portion achieve a high-efficiency and high-gain eight-band band Resonance, compared to the prior art in order to achieve multi-band resonance, the technical limitation of a planar inverted-F antenna with multiple feed points must be used. In this case, a single antenna with three feed points is used to achieve eight-band resonance. The effect is that the three-band antenna of the LTE-A smart phone in this case not only effectively improves the performance but also improves the gain. Compared with the planar inverted-F antenna of the conventional complex array of two feed points, the antenna of the present invention is compared. It can be further miniaturized and can reduce manufacturing costs.

This case has been modified by people who are familiar with the technology, but it is not intended to be protected by the scope of the patent application.

1: LTE-A smart phone 10: body 11: cover 2: three-feed point eight-band antenna 21: antenna base 21a: first surface 21b: second surface 211: first via hole 212: second via hole 213: third via 214: first conductive end 215: second conductive end 216: third conductive end 22: first metal element 221: first extension 221a: first feed end 221b: first Connection segment 221c: second connection segment 222: first radiation portion 223: second radiation portion 2231: first segment portion 2231a: first segment portion 2231b: second segment portion 2231c: third segment portion 2232: opening 224: The third radiating portion 23: the second metal member 231: the second extending portion 231a: the second feeding end 231b: the third connecting portion 232: the third extending portion 232a: the third feeding end 232b: the fourth connecting portion 233: Fourth radiating portion 2331: first branch portion 2332: second branch portion 2332a: groove 2333: second segment portion 2333a: side 2334: third segment portion 2334a: side 2335: fourth segment portion 2336 : fifth section 2336a: eighth section 2336b: ninth section 2336c, 2336d: side 2337: sixth section 2337a: fourth paragraph portion 2337b: fifth paragraph of the portion 2337c: sixth paragraph portion 2337d: seventh segment 2338: opening A, B, C, D, E, F, G, H: band

Figure 1 is a three-input eight-band antenna of the LTE-A smart phone of the preferred embodiment of the present invention.

Figure 2 is a partial enlarged view of the three-input eight-band antenna of the LTE-A smart phone shown in Figure 1.

Figure 3 is a schematic diagram showing the reverse structure of the three-input eight-band antenna of the LTE-A smart phone shown in Figure 1.

Figure 4 is a schematic diagram of an eight-band antenna of the preferred embodiment of the present invention applied to an LTE-A smart phone.

Figure 5 is a comparison of the standing wave ratio versus frequency variation of the first group produced by the three-input eight-band antenna of the preferred embodiment of the present invention.

Figure 6 is a comparison of the standing wave ratio versus frequency variation of the second group produced by the three-input eight-band antenna of the preferred embodiment of the present invention.

Figure 7 is a comparison of the third set of standing wave ratio versus frequency variation produced by the three-input eight-band antenna of the preferred embodiment of the present invention.

Figure 8 is a comparison of the standing wave ratio versus frequency variation of the fourth group generated by the three-input eight-band antenna of the preferred embodiment of the present invention.

2: three-input point eight-band antenna 21: antenna base 21a: first surface 21b: second surface 22: first metal element 221: first extension 221a: first feed end 221b: first connection section 221c: Second connecting section 222: first radiating portion 223: second radiating portion 2231: first segment portion 2231a: first segment portion 2231b: second segment portion 2231c: third segment portion 2232: opening 224: third radiating portion 23: second metal member 231: second extension portion 231a: second feed end 231b: third connection portion 232: third extension portion 232a: third feed end 232b: fourth connection portion 233: fourth radiation portion 2331: first branch portion 2332: second branch portion 2332a: groove 2333: second segment portion 2333a: side 2334: third segment portion 2334a: side 2335: fourth segment portion 2336: fifth region Segment portion 2336a: eighth segment portion 2336b: ninth segment portion 2336c, 2336d: side edge 2337: sixth segment portion 2337a: fourth segment portion 2337b: fifth segment portion 2337c: sixth segment portion 2337d: seventh segment Department 2338: Opening

Claims (10)

A three-input point eight-band antenna suitable for an LTE-A smart phone, comprising: an antenna base having a first surface and a second surface; a first metal component disposed on the antenna base, the first The metal component includes: a first extending portion having a first feeding end, a first connecting portion and a second connecting portion, wherein the first feeding end, the first connecting portion and the second connecting portion are disposed On the first surface, the first feed end is configured to feed the signal; and a first radiating portion is disposed on the first surface, connected to the first connecting portion, and is configured to generate a first The second radiating portion is connected to the first connecting portion and extends to the second surface, and includes a first segment portion and is configured to generate and receive a second frequency band for wireless signal transceiving; And a third radiating portion disposed on the first surface, connected to the second connecting portion, and configured to generate a third frequency band for wireless signal transceiving; and a second metal component disposed on the antenna base, and Corresponding to the first metal component And a second extension portion having a second feeding end and a third connecting portion, wherein the second feeding end and the third connecting portion are disposed on the first surface, and the second feeding portion The third end portion has a third feeding end and a fourth connecting portion, wherein the third feeding end and the fourth connecting portion are disposed on the first surface, The third feeding end is configured to feed the signal, and the fourth connecting portion is connected to the third connecting portion; and a fourth radiating portion, the side of the fourth radiating portion and the third connecting portion The fourth connecting portion is connected, and the other side of the fourth radiating portion has a first branch portion and a second branch portion extending outward from the other side of the fourth radiating portion, the first branch portion and the first branch portion The second branch portion is a trapezoidal structure and a strip-shaped structure, wherein the first branch portion includes a second segment portion and a third segment portion, and the second segment portion and the third segment portion Provided on the second surface, and configured to generate a fourth frequency band and a fifth frequency band respectively with the first branch portion The second branch portion includes a fourth segment portion, a fifth segment portion, and a sixth segment portion, and the fourth segment portion and the fifth segment portion are disposed in the first a second surface disposed in the fourth radiation direction, wherein the sixth segment portion is disposed relative to the fourth segment portion and extends from the second surface toward the first surface, wherein the fourth segment portion The fifth segment portion and the sixth segment portion are respectively configured to transmit and receive wireless signals transmitted by the second branch portion to generate a sixth frequency band, a seventh frequency band, and an eighth frequency band. The three-input point eight-band antenna according to claim 1, wherein the first connecting segment is perpendicular to the second connecting segment, the first connecting segment is parallel to the third connecting segment, and the first The four radiating portions extend outward in a direction away from the first radiating portion, the second radiating portion, and the third radiating portion. The three-input point eight-band antenna according to claim 1, wherein the second segment portion and the third segment portion are perpendicular to each other, and the fifth segment portion has two sides, respectively parallel At least one side of the second segment portion and the third segment portion, the first segment portion has a first segment portion, a second segment portion and a third segment portion, and is connected to each other and constitutes a a dome-shaped structure, and one of the openings of the dome-shaped structure faces the second radiating portion. The three-input point eight-band antenna according to claim 1, wherein the sixth segment portion has a fourth segment portion, a fifth segment portion, a sixth segment portion, and a seventh segment portion. Connecting and forming a groove-like structure, and one of the groove-shaped structures is open toward the fourth radiation portion, and the fifth segment portion has an eighth segment and a ninth segment, and the eighth The segment is connected to the ninth segment and constitutes an L-shaped structure. The three-input point eight-band antenna according to claim 1, wherein the length of the first branch portion is smaller than the length of the second branch portion. The three-input point eight-band antenna according to claim 1, wherein the first surface and the second surface are perpendicular to each other. The three-input point eight-band antenna according to claim 1, wherein the second feeding end and the third feeding end are connected to the third connecting portion and the third extending portion of the second extending portion The path of the fourth connection segment is connected, the first feed end and the third feed end are configured to feed a ground signal, and the second feed end is configured to feed a high frequency signal, and The fourth extension is a coupling element. For example, the three-input point eight-band antenna described in claim 1 wherein the frequency of the first frequency band is between 3410 MHz and 3590 MHz, and the frequency of the second frequency band is between 1920 MHz and 2170 MHz, and the frequency of the third frequency band is The frequency of the fourth frequency band is between 1850 MHz and 1990 MHz at 2500 MHz to 2690 MHz, the frequency of the fifth frequency band is between 1710 MHz and 1880 MHz, the frequency of the sixth frequency band is between 880 MHz and 960 MHz, and the frequency of the seventh frequency band is between 824 MHz. Up to 894MHz, and the frequency of the eighth band is between 704MHz and 746MHz. For example, the three-input point eight-band antenna described in claim 1 wherein the frequency of the first frequency band has a first upload frequency range of 3410 MHz to 3490 MHz and a first download frequency range of 3510 MHz to 3590 MHz, the first The second frequency band has a second upload frequency band between 1920 MHz and 1980 MHz and a second download frequency band between 2110 MHz and 2170 MHz, and the third frequency band has a third upload frequency band between 2500 MHz and 2570 MHz and a third download frequency band between 2620 MHz and 2690MHz, the fourth frequency band has a fourth upload frequency band between 1850MHz and 1910MHz and a fourth download frequency band between 1930MHz and 1990MHz, and the fifth frequency band has a fifth upload frequency band between 1710MHz to 1785MHz and a fifth download frequency band. Between 1805MHz and 1880MHz, the sixth frequency band has a sixth upload frequency band between 880MHz and 915MHz and a sixth download frequency band between 925MHz and 960MHz, and the seventh frequency band has a seventh upload frequency band between 824MHz and 849MHz and one The seventh download frequency band is between 869 MHz and 894 MHz, and the eighth frequency band has an eighth upload frequency band between 704 MHz and 716 MHz and an eighth download frequency band between 734 MHz and 746 MHz. The three-input point eight-band antenna according to claim 1, wherein the antenna substrate is composed of an acrylonitrile-butadiene-styrene copolymer.