TWM452477U - Mobile communication device with ultra-wideband mobile communication antenna and its ultra-wide band communication antenna - Google Patents

Description

Mobile communication device with ultra-wideband mobile communication antenna and ultra-wideband mobile communication antenna

The present invention relates to a device and an antenna thereof, and more particularly to a mobile communication device and an ultra-wideband mobile communication antenna thereof.

Referring to Figure 1, there is a conventional dual-frequency inverted-F antenna. The dual-frequency inverted-F antenna includes a coplanar ground plane 11, a feed arm 12, a first radiating arm 13, a second radiating arm 14, and a shorting arm 15.

The inner and outer conductors of a feed element 16 are electrically connected to the feed arm 12 and the ground plane 11, respectively. The first radiating arm 13 and the second radiating arm 14 are electrically connected to the feeding arm 12 for respectively resonating a low frequency mode and a high frequency mode.

The disadvantage of the dual-frequency inverted-F antenna is that only one low-frequency mode and one high-frequency mode can be resonated, and when the antenna height H is equal to 8 mm, a low-frequency bandwidth covered by the single low-frequency mode is usually insufficient. Width (defined by a three-dimensional measurement of radiation efficiency greater than 40%, less than 10% of the gain bandwidth), can not meet the needs of ultra-wideband communication systems with a single antenna.

Accordingly, it is an object of the present invention to provide an ultra-wideband mobile communication antenna that addresses the shortcomings of the prior art.

Thus, the novel ultra-wideband mobile communication antenna comprises a monopole radiating element and a parasitic radiating arm.

The monopole radiating element is configured to cover a first ultra-wideband frequency band and is located on the first dimension surface and the second dimension surface, and has a feeding point on the first dimension surface for transmitting an electromagnetic signal. The parasitic radiating arm is located on the first dimension surface and a second dimension surface having a shorting point disposed on the first dimension surface, and the parasitic radiating arm is spaced adjacent to the monopole radiating element to generate electromagnetic coupling, and causing the parasitic radiating arm to resonate to cover a second ultra-wideband frequency band .

Another object of the present invention is to provide a mobile communication device having an ultra-wideband mobile communication antenna, comprising a system circuit and the aforementioned ultra-wideband mobile communication antenna. The system circuit is configured to send and receive an electromagnetic signal and includes a ground plane, and the aforementioned ultra-wideband mobile communication antenna and the ground plane do not overlap along a normal direction perpendicular to the ground plane.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments.

Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIG. 2, a first preferred embodiment of the present ultra-wideband mobile communication antenna includes a support member 2, a monopole radiating element 3, and a parasitic radiating arm 4.

The support member 2 is configured to support the monopole radiating element 3 and the parasitic radiating arm 4, and includes a first surface 21, a second surface 22 bent from the first surface 21, and a curved surface from the first surface 21 and the second surface 22 a third surface 23, and the first surface 21 is located on the first dimension surface and has a first circumference 211, the second surface 22 is located on the second dimension surface and has a second circumference 221, and the third surface 23 is located in the third dimension The face has a third circumference 231, wherein any two of the first dimension face, the second dimension face, and the third dimension face are not parallel to each other.

The support member 2 of the first preferred embodiment is a rectangular cylinder made of a plastic material, but may be other kinds of non-conductive materials, even when the monopole radiating element 3 and the parasitic radiating arm 4 are directly made of metal sheets. In any case, any of the preferred embodiments of the present specification may not include the supporting component 2, but directly attach or affix the monopole radiating component 3 and the parasitic radiating arm 4 to the applied product (not shown). Further, the monopole radiating element 3 and the parasitic radiating arm 4 may be conductor thin films formed on the product casing by, for example, laser engraving.

The monopole radiating element 3 is configured to cover a first ultra-wideband frequency band and is bent from a first dimension surface to another second dimension plane, and has a feeding point 31, a first monopole radiating portion 32, and a The second monopole radiating portion 33, a third monopole radiating portion 34, and a fourth monopole radiating portion 35.

The feed point 31 is located on the first dimension surface for transmitting an electromagnetic signal. The first monopole radiating portion 32 is located on the first dimension surface, and a first length L1 of the first monopole radiating portion 32 extending toward the first direction +X is greater than a first width W1 extending toward a second direction +Y.

The second monopole radiating portion 33 is located on the second dimension surface, and extends from the first monopole radiating portion 32 toward the first parasitic arm portion 42, and the second monopole radiating portion 33 extends toward the first direction +X. The length L2 is greater than a second width W2 extending toward a third direction +Z, and any two directions of the first direction +X, the second direction +Y, and the third direction +Z are perpendicular to each other, and the first dimension surface is The XY plane, the second dimension plane is the XZ plane.

The third monopole radiating portion 34 and the fourth monopole radiating portion 35 are electrically connected to the first monopole radiating portion 32 and are respectively located opposite to the first monopole radiating portion 32. The side, and the third monopole radiating portion 34 is located on the first dimension plane. The fourth monopole radiation portion 35 is located on the first dimension surface 21 and the third dimension surface.

The parasitic radiation arm 4 is located on the first dimension surface, the second dimension surface and the third dimension surface, and is spaced apart from the monopole radiating element 3 to generate electromagnetic coupling, and the parasitic radiation arm 4 is resonated to cover a second ultra-wideband frequency band.

The parasitic radiating arm 4 has a short-circuit point 41, a first parasitic arm portion 42, a second parasitic arm portion 43, a third parasitic arm portion 44, and a fourth parasitic arm portion 45.

The first parasitic arm portion 42 and the second parasitic arm portion 43 are located on the second dimension surface and are electrically connected to each other and together form an L shape. The first parasitic arm portion 42 extends from the second parasitic arm 43 toward the first direction +X by a first distance D1, and the feeding point 31 and the short-circuit point 41 are spaced apart from each other by a second distance D2 in the first direction +X, And a difference ΔD=D1-D2 of the first distance D1 minus the second distance D2 is smaller than the second distance D2. The second parasitic arm 43 extends in the third direction +Z. The third parasitic arm portion 44 is located on the first dimension surface and electrically connects the second parasitic arm portion 43 and the short circuit point 41 and is located between the second parasitic arm portion 43 and the short circuit point 41. The fourth parasitic arm portion 45 is located on the third dimension surface and extends from the first parasitic arm portion 42 , and the first parasitic arm portion 42 and the fourth parasitic arm portion 45 are located on opposite sides of the second parasitic arm portion 43 . On the same side.

The first parasitic arm portion 42 has a parasitic coupling edge 421, and the second monopole radiating portion 33 has a monopole coupling edge 331 extending in the same direction as the parasitic coupling edge 421, and the parasitic coupling edge 421 is common with the monopole coupling edge 331 Defining a first gap 5, and a distance between the parasitic coupling edge 421 and the monopole coupling edge 331 in the third direction +Z, that is, the width of the first gap 5, The smaller the smaller, the stronger the capacitive coupling between the first parasitic arm portion 42 and the monopole radiating element 3, and vice versa. In the preferred embodiment, the width of the first gap 5 is less than 5 mm.

In the first preferred embodiment, the feed point 31, the first monopole radiating portion 32 and the third monopole radiating portion 34 of the monopole radiating element 3 are located on the first surface 21 of the support member 2, and the fourth monopole radiation The portion 35 is bent from the first surface 21 to the third surface 23.

The short-circuit point 41 of the parasitic radiating arm 4 is located at a corner of the first surface 21, the first parasitic arm portion 42 is located at the second surface 22 and extends 50 mm along the second peripheral edge 221 and the first direction +X, second The parasitic arm portion 43 is located on the second surface 22 and extends 8 mm along the second circumference 221 and the third direction +Z. The third parasitic arm portion 44 is located on the first surface 21 and along the first circumference 211 and the second Direction +Y extends 6 mm. Referring to FIG. 3, the results of the actually measured three-dimensional radiation efficiency show that the first ultra-wideband frequency band and the second ultra-wideband frequency band of the first preferred embodiment are adjacent to each other to collectively cover an ultra-wideband from 704 MHz to 2655 MHz. The frequency efficiency of the frequency band and the ultra-wideband frequency band (704~2655 MHz) is higher than 40%, and the conversion gain bandwidth BW>(2655-704)/[(2655-704)/2]=50% is larger than Knowing the 10% gain bandwidth of the dual-frequency inverted-F antenna, the first preferred embodiment does address the shortcomings of the prior art.

Referring to FIG. 4, a second preferred embodiment of the present ultra-wideband mobile communication antenna is similar to the first preferred embodiment. The difference is that the monopole radiating element 3 includes a first monopole radiating portion 32 and a second monopole radiating portion. 33, and the first monopole radiating portion 32 is substantially rectangular, and the second monopole radiating portion 33 is from the first single The pole radiating portion 32 extends gradually toward the first parasitic arm portion 42, and it is explained in more detail that the second monopole radiating portion 33 is substantially trapezoidal.

Referring to FIG. 5, a third preferred embodiment of the present ultra-wideband mobile communication antenna is similar to the second preferred embodiment. The difference is that the first monopole radiating portion 32 is substantially triangular and the second monopole radiating portion 33 It is also substantially triangular, and an obtuse angle of the triangle presented by the first monopole radiating portion 32 is electrically connected to an obtuse angle of the triangle presented by the second monopole radiating portion 33.

Referring to FIG. 6, a preferred embodiment of the mobile communication device with an ultra-wideband mobile communication antenna includes a system circuit 10 for transmitting and receiving an electromagnetic signal and an ultra-wideband mobile communication antenna 20. For example, a preferred embodiment of the new mobile communication device can be a smart phone.

The system circuit 10 includes a substrate 101 and a ground plane 102 disposed on the substrate 101, and the ground plane 102 has a ground edge 1021.

The ultra-wideband mobile communication antenna 20 may be any one of the first preferred embodiment to the third preferred embodiment and disposed on the substrate 101, and electrically connected to the system circuit 10 to exchange electromagnetic signals.

Moreover, the ultra-wideband mobile communication antenna 20 and the ground plane 102 do not overlap along a normal direction perpendicular to the ground plane 102 (ie, the second direction +Y), and the first monopole radiation of the ultra-wideband mobile communication antenna 20 The portion 32 also has a first edge 321 spaced adjacent to the ground edge 1021, and the first edge 321 and the ground edge 1021 together define a second gap 6, and the first edge 321 is along the second direction +Y to A distance between the ground edges 1021, that is, the width of the second gap 6, in the preferred embodiment, the second gap 6 is less than 5 mm.

In summary, by bending the monopole radiating element 3 and the parasitic radiating arm 4 into a body shape and disposing on the supporting member 2, the monopole can be made at a limited antenna height H (as shown in FIG. 6). The radiating element 3 and the parasitic radiating arm 4 are respectively generated to cover the first ultra-wideband frequency band and the second ultra-wideband frequency band, so that the purpose of the present invention can be achieved.

However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention cannot be limited thereto, that is, the simple equivalent change and modification made by the novel patent application scope and the novel description content, All remain within the scope of this new patent.

11‧‧‧ Ground plane

12‧‧‧Feeding arm

13‧‧‧First Radiation Arm

14‧‧‧second radiation arm

15‧‧‧Short-circuit arm

16‧‧‧Feeding components

H‧‧‧Antenna height

2‧‧‧Support components

21‧‧‧ first surface

211‧‧‧First Week

22‧‧‧ second surface

221‧‧‧second circumference

23‧‧‧ third surface

231‧‧‧ Third Week

3‧‧‧ Unipolar radiating element

31‧‧‧Feeding point

32‧‧‧First Unipolar Radiation Department

321‧‧‧ first edge

33‧‧‧Secondary unipolar radiation department

331‧‧‧ Unipolar coupling edge

34‧‧‧ Third Unipolar Radiation Department

35‧‧‧ Fourth Unipolar Radiation Department

4‧‧‧ Parasitic Radiation Arm

41‧‧‧ Short circuit point

42‧‧‧First parasitic arm

421‧‧‧ Parasitic coupling edge

43‧‧‧Second parasitic arm

44‧‧‧ Third parasitic arm

45‧‧‧fourth parasitic arm

D1‧‧‧First distance

D2‧‧‧Second distance

5‧‧‧First gap

6‧‧‧Second gap

10‧‧‧System Circuit

101‧‧‧Substrate

102‧‧‧ ground plane

1021‧‧‧ Grounding edge

+X‧‧‧First direction

+Y‧‧‧Second direction

+Z‧‧‧ third direction

W1‧‧‧ first width

W2‧‧‧ second width

L1‧‧‧ first length

L2‧‧‧ second length

1 is a schematic diagram of a conventional dual-frequency inverted-F antenna; FIG. 2 is a schematic diagram of a first preferred embodiment of the present ultra-wideband mobile communication antenna; FIG. 3 is a three-dimensional radiation of the first preferred embodiment. FIG. 4 is a schematic diagram of a second preferred embodiment of the ultra-wideband mobile communication antenna of the present invention; FIG. 5 is a schematic diagram of a third preferred embodiment of the ultra-wideband mobile communication antenna of the present invention; and FIG. A schematic diagram of a preferred embodiment of a novel mobile communication device having an ultra-wideband mobile communication antenna.

2‧‧‧Support components

21‧‧‧ first surface

211‧‧‧First Week

22‧‧‧ second surface

221‧‧‧second circumference

23‧‧‧ third surface

231‧‧‧ Third Week

3‧‧‧ Unipolar radiating element

31‧‧‧Feeding point

32‧‧‧First Unipolar Radiation Department

321‧‧‧ first edge

33‧‧‧Secondary unipolar radiation department

331‧‧‧ Unipolar coupling edge

34‧‧‧ Third Unipolar Radiation Department

35‧‧‧ Fourth Unipolar Radiation Department

4‧‧‧ Parasitic Radiation Arm

41‧‧‧ Short circuit point

42‧‧‧First parasitic arm

421‧‧‧ Parasitic coupling edge

43‧‧‧Second parasitic arm

44‧‧‧ Third parasitic arm

45‧‧‧fourth parasitic arm

D1‧‧‧First distance

D2‧‧‧Second distance

5‧‧‧First gap

+X‧‧‧First direction

+Y‧‧‧Second direction

+Z‧‧‧ third direction

W1‧‧‧ first width

W2‧‧‧ second width

L1‧‧‧ first length

L2‧‧‧ second length

Claims (22)

An ultra-wideband mobile communication antenna comprising: a monopole radiating element for covering a first ultra-wideband frequency band and bending from a first dimension surface to another second dimension plane, and including a first dimension a feed point for transmitting an electromagnetic signal; and a parasitic radiation arm located on the first dimension surface and having a short circuit point on the first dimension surface, and the parasitic radiation arm and the monopole radiating element The spacers are adjacent to each other to produce electromagnetic coupling, and the parasitic radiating arm is resonated to cover a second ultra-wideband frequency band. The ultra-wideband mobile communication antenna according to claim 1, wherein the parasitic radiating arm further has: a first parasitic arm portion and a second parasitic arm portion located on the second dimension surface and electrically connected to each other And forming an L-shape together; and a third parasitic arm portion located on the first dimension surface, electrically connecting the second parasitic arm portion and the short-circuit point, and located between the second parasitic arm portion and the short-circuit point . The ultra-wideband mobile communication antenna according to claim 2, wherein the first parasitic arm portion extends from the second parasitic arm to a first direction by a first distance, and the feeding point and the short-circuit point A second distance is spaced apart from the first direction, and a difference between the first distance minus the second distance is less than the second distance. The ultra-wideband mobile communication antenna according to claim 3, wherein the parasitic radiating arm further has a fourth parasitic arm extending from the first parasitic arm and bent to a third dimension surface. And the first post The living arm portion and the fourth parasitic arm portion are located on the same side of opposite sides of the second parasitic arm portion. The ultra-wideband mobile communication antenna according to claim 4, wherein the monopole radiating element further comprises: a first monopole radiating portion located on the first dimension surface, and the first monopole radiating portion faces a first length extending in the first direction is greater than a first width extending in a second direction; and a second monopole radiating portion is located on the second dimension surface, and the first monopole radiating portion faces the first a second parasitic arm portion extends, and a second length of the second monopole radiating portion extending toward the first direction is greater than a second width extending toward a third direction, and the first direction, the second direction, and the first The two directions of the three directions are perpendicular to each other, and the first direction and the third direction are parallel to the second dimension plane, and the second direction is parallel to the first dimension plane. The ultra-wideband mobile communication antenna according to claim 5, wherein the second monopole radiating portion extends from the first monopole radiating portion toward the first parasitic arm portion. The ultra-wideband mobile communication antenna according to claim 6, wherein the first monopole radiating portion is substantially rectangular, and the second monopole radiating portion is substantially trapezoidal. The ultra-wideband mobile communication antenna according to claim 6, wherein the first monopole radiating portion is substantially a triangle, the second monopole radiating portion is substantially a triangle, and the first single An obtuse angle of the triangle presented by the polar radiation portion is electrically connected to the second monopole radiation portion An obtuse angle of the triangle presented. The ultra-wideband mobile communication antenna according to claim 5, wherein the monopole radiating element is further electrically connected to the first monopole radiating portion and respectively located on opposite sides of the first monopole radiating portion. a third monopole radiating portion and a fourth monopole radiating portion, wherein the third monopole radiating portion is located at the first dimension surface, and the fourth monopole radiating portion is located at the first dimension surface and the third dimension surface. The ultra-wideband mobile communication antenna according to claim 5, wherein the first parasitic arm and the monopole radiating element jointly define a first gap, and the first gap has a width of less than 5 mm. The ultra-wideband mobile communication antenna according to any one of claims 1 to 10, further comprising a support member, the support member comprising: a first surface located on the first dimension surface and having a a first circumference; and a second surface located on the second dimension surface and having a second circumference; and the parasitic radiation arm extends along the first circumference and the second circumference, the monopole radiating element is The first surface and the second surface of the support member are disposed. A mobile communication device with an ultra-wideband mobile communication antenna, comprising: a system circuit for transmitting and receiving an electromagnetic signal, and comprising a ground plane; an ultra-wideband mobile communication antenna electrically connected to the system circuit for exchange The electromagnetic signal, and the ultra-wideband mobile communication antenna and the ground plane do not overlap along a normal direction perpendicular to the ground plane, and include: a monopole radiating element for covering a first ultra-wideband frequency band And bending from a first dimension surface to a second dimension surface, and having a feed point on the first dimension surface for transmitting the electromagnetic signal; and a parasitic radiation arm located on the first dimension surface And the second dimension surface and having a short circuit point disposed on the first dimension surface, and the parasitic radiation arm is spaced apart from the monopole radiating element to generate electromagnetic coupling, and the parasitic radiation arm is resonated to cover A second ultra-wideband frequency band. The mobile communication device with an ultra-wideband mobile communication antenna according to claim 12, wherein the parasitic radiation arm further has: a first parasitic arm portion and a second parasitic arm portion, the second dimension surface And electrically connected to each other and form an L-shape; and a third parasitic arm portion located on the first dimension surface, electrically connecting the second parasitic arm portion and the short-circuit point, and located at the second parasitic arm portion and Between the short circuit points. The mobile communication device with an ultra-wideband mobile communication antenna according to claim 13 , wherein the first parasitic arm extends a first distance from the second parasitic arm toward a first direction, and the feeding The point is spaced apart from the short circuit point by a second distance in the first direction, and a difference between the first distance minus the second distance is less than the second distance. Ultra-wideband mobile communication day according to item 14 of the patent application scope The mobile communication device of the line, wherein the parasitic radiation arm further has a fourth parasitic arm portion extending from the first parasitic arm portion and bent to a third dimension surface, and the first parasitic arm portion and the The fourth parasitic arm portion is located on the same side of the opposite sides of the second parasitic arm portion. The mobile communication device with an ultra-wideband mobile communication antenna according to claim 15, wherein the monopole radiating element has: a first monopole radiating portion located on the first dimension surface, and the first single a first length extending from the polar radiating portion toward the first direction is greater than a first width extending toward a second direction; and a second monopole radiating portion located at the second dimension surface and radiating from the first monopole Extending toward the first parasitic arm portion, and a second length of the second monopole radiating portion extending toward the first direction is greater than a second width extending toward a third direction, and the first direction and the second direction And any two directions of the third direction are perpendicular to each other, and the first direction and the third direction are parallel to the second dimension surface, and the second direction is parallel to the first dimension plane. The mobile communication device with an ultra-wideband mobile communication antenna according to claim 16, wherein the second monopole radiating portion extends from the first monopole radiating portion toward the first parasitic arm portion. The mobile communication device with an ultra-wideband mobile communication antenna according to claim 17, wherein the first monopole radiating portion is substantially a triangle, and the second monopole radiating portion is substantially triangular. And an obtuse angle of the triangle presented by the first monopole radiating portion is electrically connected to an obtuse angle of the triangle presented by the second monopole radiating portion. The mobile communication device with an ultra-wideband mobile communication antenna according to claim 17, wherein the first monopole radiating portion is substantially rectangular, and the second monopole radiating portion is substantially trapezoidal. The mobile communication device with an ultra-wideband mobile communication antenna according to claim 16, wherein the monopole radiating element is further electrically connected to the first monopole radiating portion and respectively located at the first monopole radiation a third monopole radiation portion and a fourth monopole radiation portion on opposite sides of the portion, wherein the third monopole radiation portion is located on the first dimension surface, and the fourth monopole radiation portion is located at the first The dimension face and the third dimension face. The mobile communication device with an ultra-wideband mobile communication antenna according to claim 16, wherein the first parasitic arm and the monopole radiating element jointly define a first gap, and the width of the first gap Less than 5 mm; the grounding mask has a grounding edge, the first monopole radiating portion has a first edge spaced apart from the grounding edge, and the first edge of the first monopole radiating portion and the grounding edge A second gap is defined together, and the width of the second gap is less than 5 mm. The mobile communication device with an ultra-wideband mobile communication antenna according to any one of claims 12 to 21, wherein the ultra-wideband mobile communication antenna further comprises a supporting component, the supporting component having: a first surface located on the first dimension surface and having a first circumference; and a second surface located on the second dimension surface and having a second circumference And the parasitic radiation arm extends along the first circumference and the second circumference, and the monopole radiating element is disposed on the first surface and the second surface of the supporting element.