Wireless adapter

Abstract

A wireless adapter comprises a circuit carrier board provided with opposite front and back side edges and opposite left and right side edges; the connector is arranged at the middle part of the front side edge of the circuit carrier plate; the wireless module is arranged in the middle and on the left side of the circuit carrier plate; the printed antenna is arranged on the right side part of the circuit carrier plate, the wireless module is arranged between the connector and the printed antenna, the printed antenna is provided with a feed-in part and a radiation part, the feed-in part is connected to the lower right corner of the wireless module, the radiation part extends rightwards along the rear side edge from the feed-in part, and the radiation part is connected to the lower right corner of the wireless module. The radiation part is bent upwards and then extends to the front side edge, then is bent rightwards and extends to the right side edge, and then is bent downwards and extends, and the tail end of the radiation part is located in the middle of the right side edge.

Description

Technical Field

[0001] The utility model relates to a wireless adapter, in particular to a printed antenna layout of the wireless adapter. Background Art

[0002] Nowadays, in the context of the rapid development of mobile communications, various types of entertainment devices are gradually moving towards wireless. At the same time, as users tend to choose devices that are more portable, entertainment devices are being pushed towards handheld devices, and thin and short entertainment devices and their peripheral devices have become the mainstream in the market. The size of entertainment devices and their peripheral devices is moving towards miniaturization. For example, in response to the increasingly smaller size of wireless adapters, the antennas installed inside them must also be reduced, thereby increasing the demand for small-sized antennas that can stably work in the provided frequency band.

[0003] Therefore, it is necessary to provide a wireless adapter whose printed antenna layout can stably operate in a provided frequency band in a limited space. Summary of the invention

[0004] The purpose of the present utility model is to provide a wireless adapter, comprising: a circuit board, provided with opposite front side edges and rear side edges and opposite left side edges and right side edges; a connector, arranged and protruding from the middle part of the front side edge of the circuit board; a wireless module, arranged in the middle part and the left side part of the circuit board, and the wireless module is connected to the connector; and a printed antenna, arranged in the right part of the circuit board, the wireless module is arranged between the connector and the printed antenna, the printed antenna is far away from the connector, the printed antenna is provided with a feeding portion arranged near the rear side edge of the circuit board, and a radiation The radiating portion is connected to the lower right corner of the wireless module, the radiating portion extends from the feeding portion to the right along the rear edge of the circuit carrier, and maintains a distance from the rear edge of the circuit carrier, then bends upward and extends to the front edge of the circuit carrier, then bends rightward and extends to the right side edge of the circuit carrier, and maintains the distance from the front edge of the circuit carrier, then bends downward and extends, and maintains the distance from the right side edge of the circuit carrier, the end of the radiating portion is located in the middle of the right side edge of the circuit carrier, and the end edge of the radiating portion maintains a distance from the rear edge.

[0005] In some embodiments, the radiating portion includes a first section formed by the feeding portion extending linearly to the right, a second section formed by the right end of the first section extending linearly upward, a third section formed by the top end of the second section extending linearly to the right, and a fourth section formed by the right end of the third section extending linearly downward, the lateral extension length of the first section is smaller than the lateral extension length of the third section, the longitudinal extension length of the fourth section is smaller than the longitudinal extension length of the second section, the bottom edge of the first section is spaced apart from the rear edge of the circuit carrier by the spacing, the top edge of the third section is spaced apart from the front edge of the circuit carrier by the spacing, and the right side edge of the fourth section is spaced apart from the right side edge of the circuit carrier by the spacing.

[0006] In some embodiments, an extension path of the first segment is parallel to an extension path of the third segment, and an extension path of the second segment is parallel to an extension path of the fourth segment.

[0007] As mentioned above, the printed antenna of the wireless adapter of the utility model has the ability to stably operate in a single frequency band. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to make the above and other purposes, features, advantages and embodiments of the present invention more obvious and understandable, the content of the present invention can be better understood when reading in conjunction with the accompanying drawings.

[0009] Figure 1 It is a structural diagram of the utility model infinite adapter.

[0010] Figure 2 It is a voltage standing wave ratio test diagram of the printed antenna of the wireless adapter of the utility model.

[0011] Figure 3 It is a Smith chart of the printed antenna of the wireless adapter of the utility model.

[0012] Figure 4 It is a reflection loss diagram of the printed antenna of the wireless adapter of the utility model. DETAILED DESCRIPTION

[0013] In order to explain the technical content, structural features, purpose and effect of the unlimited adapter of the utility model in detail, the following examples are given and detailed descriptions are made with the help of drawings. For the convenience of description, the upper part in this specification is defined as a higher position in the direction facing the drawings, the lower part is defined as a lower position in the direction facing the drawings, the left part is defined as a position on the left hand side in the direction facing the drawings, and the right part is defined as a position on the right hand side in the direction facing the drawings.

[0014] See also Figure 1 ,like Figure 1As shown, the wireless adapter 100 of the present invention comprises a circuit board 10, a connector 20, a wireless module 30 and a printed antenna 40. The connector 20, the wireless module 30 and the printed antenna 40 are all disposed on the circuit board 10, the connector 20 is connected to the wireless module 30, and the wireless module 30 is connected to the printed antenna 40.

[0015] The circuit board 10 is generally rectangular, and has two opposite long sides and opposite short sides. In this embodiment, the front side edge and the rear side edge of the circuit board 10 are the long sides, and the left side edge and the right side edge of the circuit board 10 are the short sides. The connector 20 is disposed and protrudes from the middle part of the front side of the circuit board 10. The wireless module 30 is disposed in the middle part and the left part of the circuit board 10. The printed antenna 40 is disposed on the right part of the circuit board 10.

[0016] After the user inserts the wireless adapter 100 into an electronic device (e.g., a home game console), the mobile device can communicate wirelessly via the wireless adapter 100. In this embodiment, since the metal shell of the connector 20 will affect the characteristics of the printed antenna 40, such as voltage standing wave ratio, field pattern, and reflection loss, the layout of the printed antenna 40 needs to be away from the metal shell of the connector 20 while matching the circuit layout of the wireless module 30. The wireless module 30 can be a Bluetooth module or a 2.4G module, and includes a plurality of circuits 31 for data transmission and conversion. The circuits 31 can be different types of circuits or components such as microcontrollers, filters, sensors, etc. Figure 1 The number of the circuits 31 shown in FIG. 1 is for illustration only and is not intended to be limiting. In this embodiment, the plurality of circuits 31 are disposed between the connector 20 and the printed antenna 40 .

[0017] The printed antenna 40 is a monopole antenna, and is provided with a feeding portion 41 and a radiating portion 42. The feeding portion 41 is disposed near the rear edge of the circuit carrier 10, and is connected to the lower right corner of the wireless module 30. The radiating portion 42 extends horizontally to the right along the rear edge of the circuit carrier 10 from the feeding portion 41, and maintains a spacing s1 from the rear edge of the circuit carrier 10, then bends vertically upward and extends to the front edge of the circuit carrier 10, then bends vertically to the right and extends horizontally to the right side edge of the circuit carrier 10, and maintains the spacing s1 from the front edge of the circuit carrier 10, then bends vertically downward and extends, and maintains the spacing s1 from the right side edge of the circuit carrier 10, and the end of the radiating portion 42 is located in the middle section of the right side edge, and the end of the radiating portion 42 maintains a distance from the rear edge of the circuit carrier 10.

[0018] Continue to refer to Figure 1 In this embodiment, the radiation portion 42 includes a first section 42a formed by the feeding portion 41 extending straight to the right, a second section 42b formed by the right end of the first section 42a extending straight upward vertically, a third section 42c extending straight to the right vertically from the top of the second section 42b, and a fourth section 42d extending straight downward vertically from the right end of the third section 42c to the middle section of the right side edge. The bottom edge of the first section 42a is spaced apart from the rear side edge of the circuit carrier 10 by the spacing s1, the top edge of the third section 42c is spaced apart from the front side edge of the circuit carrier 10 by the spacing s1, and the right side edge of the fourth section 42d is spaced apart from the right side edge of the circuit carrier 10 by the spacing s1. The first section 42a and the third section 42c are both in the shape of transversely long strips, the transversely extending length of the first section 42a is less than the transversely extending length of the third section 42c, and the extending path of the first section 42a is parallel to the extending path of the third section 42c. The second section 42b and the fourth section 42d are both in the shape of longitudinally long strips, the longitudinally extending length of the fourth section 42d is less than the longitudinally extending length of the second section 42b, and the extending path of the second section 42b is parallel to the extending path of the fourth section 42d. In practice, the longitudinally extending length of the fourth section 42d is approximately half of the longitudinally extending length of the second section 42b.

[0019] According to the above configuration, the feeding portion 41 and the radiating portion 42 of the printed antenna 40 can transmit or interact with each other to oscillate electromagnetic waves in the frequency band of 2.4 GHz to 2.5 GHz. In practice, the spacing s1 is 0.2 mm.

[0020] When the printed antenna 40 of the wireless adapter 100 of the present invention is in wireless communication, the current from the wireless module 30 is fed in by the feeding portion 41, and the current can oscillate in the frequency band of 2.4 GHz to 2.5 GHz through the radiating portion 42. The printed antenna 40 of the wireless adapter 100 of the present invention can stably operate in the provided frequency band in a limited space.

[0021] See also Figure 2 and Figure 3 , are the voltage standing wave ratio (VSWR) test diagram and Smith chart of the printed antenna 40 of the wireless adapter 100 of the utility model. When the printed antenna 40 operates at 2.4 GHz, the VSWR is 1.4037 (M1 in the figure), when the printed antenna 40 operates at 2.44 GHz, the VSWR is 1.2769 (M2 in the figure), and when the printed antenna 40 operates at 2.48 GHz, the VSWR is 1.3261 (M3 in the figure). Therefore, the printed antenna 40 of the wireless adapter 100 of the utility model can stably operate in the frequency band range of 2.4 GHz to 2.5 GHz.

[0022] Please see again Figure 4 ,like Figure 4 As shown, the printed antenna 40 of the wireless adapter 100 of the present invention operates in the frequency range of 2.4 GHz to 2.5 GHz and the reflection loss of its bandwidth is approximately -15 dB, indicating that the loss of the printed antenna 40 is small and the radiation energy of the printed antenna 40 is large.

[0023] In summary, the printed antenna 40 of the wireless adapter 100 of the present invention can stably operate in the provided frequency band in a limited space, adapting to the development trend of miniaturization and wirelessization of electronic products.

[0024] Although the present invention has been disclosed as above by way of embodiments, it is not intended to limit the present invention. Any person having ordinary knowledge in the technical field may make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the definition of the attached claims.

Claims

1. A wireless adapter, characterized in that: The invention comprises: a circuit carrier having opposite front and rear edges and opposite left and right edges; a connector arranged and protruding from the middle part of the front edge of the circuit carrier; a wireless module disposed at the middle portion and the left portion of the circuit carrier, and the wireless module is connected to the connector; and a printed antenna, which is arranged on the right side of the circuit carrier, the wireless module is arranged between the connector and the printed antenna, and the printed antenna is far away from the connector. The printed antenna is provided with a feeding portion arranged near the rear edge of the circuit carrier, and a radiating portion, the feeding portion is connected to the lower right corner of the wireless module, the radiating portion extends from the feeding portion to the right along the rear edge of the circuit carrier, and keeps a distance from the rear edge of the circuit carrier, then bends upward and extends to the front edge of the circuit carrier, then bends rightward and extends to the right side edge of the circuit carrier, and keeps the distance from the front edge of the circuit carrier, then bends downward and extends, and keeps the distance from the right side edge of the circuit carrier, the end of the radiating portion is located in the middle of the right side edge of the circuit carrier, and the end edge of the radiating portion keeps a distance from the rear edge.

2. The wireless adapter according to claim 1, wherein: The radiating portion includes a first section formed by the feeding portion extending linearly to the right, a second section formed by the right end of the first section extending linearly upward, a third section formed by the top end of the second section extending linearly to the right, and a fourth section formed by the right end of the third section extending linearly downward, the lateral extension length of the first section is smaller than the lateral extension length of the third section, the longitudinal extension length of the fourth section is smaller than the longitudinal extension length of the second section, the bottom edge of the first section is spaced apart from the rear edge of the circuit carrier by the spacing, the top edge of the third section is spaced apart from the front edge of the circuit carrier by the spacing, and the right side edge of the fourth section is spaced apart from the right side edge of the circuit carrier by the spacing.

3. The wireless adapter according to claim 2, wherein: An extension path of the first section is parallel to an extension path of the third section, and an extension path of the second section is parallel to an extension path of the fourth section.

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