WO2019127091A1 - Ensemble antenne et camera comprenant un ensemble antenne - Google Patents

Ensemble antenne et camera comprenant un ensemble antenne Download PDF

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Publication number
WO2019127091A1
WO2019127091A1 PCT/CN2017/118969 CN2017118969W WO2019127091A1 WO 2019127091 A1 WO2019127091 A1 WO 2019127091A1 CN 2017118969 W CN2017118969 W CN 2017118969W WO 2019127091 A1 WO2019127091 A1 WO 2019127091A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit board
flexible circuit
substrate
radiating portion
antenna radiator
Prior art date
Application number
PCT/CN2017/118969
Other languages
English (en)
Chinese (zh)
Inventor
李栋
Original Assignee
深圳市大疆创新科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市大疆创新科技有限公司 filed Critical 深圳市大疆创新科技有限公司
Priority to PCT/CN2017/118969 priority Critical patent/WO2019127091A1/fr
Priority to CN202110139277.2A priority patent/CN112886237A/zh
Priority to CN201780016778.3A priority patent/CN108780943B/zh
Publication of WO2019127091A1 publication Critical patent/WO2019127091A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors

Definitions

  • the present application relates to the field of communications technologies, and in particular, to an antenna assembly and a camera including the antenna assembly.
  • antenna components are used to implement wireless signal transmission in many devices. Some existing devices are specially designed for wirelessly connecting antenna components. The radiators of the antenna components and other devices need to be kept at a certain distance, so that the antenna components occupy a large space, which is disadvantageous to miniaturization of the device and low integration. And the structure is not compact.
  • the present application provides a highly integrated and compact wireless component and a camera including the wireless component.
  • an antenna assembly includes: a main board; an antenna radiator electrically connected to the main board; and a flexible circuit board attached to a surface of the antenna radiator, the antenna radiator Supporting the flexible circuit board.
  • a camera includes: a housing; a camera body mounted in the housing; and an antenna assembly mounted on the camera body, including: a main board; an antenna radiator; The motherboard is electrically connected and fixedly mounted to the camera body; and a flexible circuit board is attached to the surface of the antenna radiator, and the antenna radiator supports the flexible circuit board.
  • the antenna radiator of the present application can be used to support a flexible circuit board as a reinforcing board of a flexible circuit board, so that the antenna assembly occupies a small space, is highly integrated, and has a compact structure.
  • FIG. 1 is a partial perspective view of an embodiment of a camera of the present application.
  • FIG. 2 is a perspective view of a main board and an antenna radiator of the antenna assembly of the camera shown in FIG. 1.
  • FIG. 3 is a front elevational view of the main board and antenna radiator shown in FIG. 2.
  • Figure 5 is a graph showing the radiation efficiency waveform of the antenna assembly.
  • Figure 6 is a 3D directional radiation pattern of the antenna assembly.
  • Figure 7 is a 3D directional radiation pattern at another frequency of the antenna assembly.
  • the antenna assembly of the embodiment of the present application includes a main board, an antenna radiator, and a flexible circuit board.
  • the antenna radiator is electrically connected to the main board.
  • the flexible circuit board is attached to the surface of the antenna radiator, and the antenna radiator supports the flexible circuit board.
  • the antenna radiator can be used to support the flexible circuit board as a reinforcing board of the flexible circuit board, so that the antenna assembly occupies small space, high integration and compact structure.
  • the camera of the embodiment of the present application includes a housing, a camera body, and an antenna assembly.
  • the camera body is mounted in the housing.
  • the antenna assembly is mounted on the camera body.
  • the antenna assembly includes a main board, an antenna radiator, and a flexible circuit board.
  • the antenna radiator is electrically connected to the main board.
  • the flexible circuit board is attached to the surface of the antenna radiator, and the antenna radiator supports the flexible circuit board.
  • the antenna radiator can be used to support the flexible circuit board as a reinforcing board of the flexible circuit board, so that the antenna assembly occupies small space, high integration and compact structure, and the internal space of the camera is reused, which is advantageous for miniaturization of the camera.
  • FIG. 1 shows a partial perspective view of one embodiment of a camera 10.
  • FIG. 1 shows some of the components inside the camera 10.
  • the camera 10 includes a housing 11, a camera body 12, and an antenna assembly 13.
  • the antenna assembly 13 can be used in the camera 10, and can also be used in tablets or other devices that require wireless communication.
  • camera 10 may be a motion camera.
  • the outer casing 11 may be made of a metal material such as an aluminum alloy. Only the rear cover of the outer casing 11 is shown in Fig. 1, and the front cover, the upper cover and the bottom cover are removed, not shown.
  • the camera body 12 is mounted within the housing 11.
  • the camera body 12 can be mounted with a display screen 14 that fits within the rear cover of the housing 11 in the form of a rectangular frame.
  • the camera body 12 can be equipped with a astigmatism lamp, a shutter unit, an image sensor, a digital image processor, and the like.
  • a battery, a memory card, and the like can also be mounted in the casing 11.
  • the antenna assembly 13 is mounted on the camera body 12 and includes a main board 131, an antenna radiator 132, and a flexible circuit board 133.
  • the antenna assembly 13 is used to transmit and receive electromagnetic waves for wireless communication with other devices.
  • the antenna assembly 13 in this embodiment is a built-in antenna assembly located inside the casing 11 of the camera 10.
  • the antenna assembly 13 may include a WiFi antenna, a Bluetooth antenna, a 3G/4G antenna, or a GPS single stage antenna.
  • FIG. 2 is a perspective view of the main board 131 and the antenna radiator 132 of the antenna assembly 13
  • FIG. 3 is a front view of the main board 131 and the antenna radiator 132 shown in FIG. 2.
  • the main board 131 is mounted to the front side of the camera body 12.
  • the main board 131 includes a printed circuit board 1311 and a radio frequency circuit 1312 mounted on the printed circuit board 1311.
  • the RF circuit 1312 generates a radio frequency signal that is electrically coupled to the antenna radiator 132.
  • the RF circuit 1312 can include a radio frequency chip 1313 that is electrically coupled to the antenna radiator 132.
  • the radio frequency chip 1313 provides a radio frequency signal, and the antenna radiator 132 radiates the radio frequency signal.
  • the RF signal output of the RF chip 1313 is electrically coupled to the antenna radiator 132 via the foot 134.
  • the radio frequency chip 1313 is electrically coupled to the antenna radiator 132 via a feed line (like an axis or the like) through which the radio frequency signal is transmitted to the antenna radiator 132.
  • the inner conductor of the feeder (like the inner core of the axis) electrically connects the RF signal output of the RF chip 1313 to the antenna radiator 132, and the outer conductor (like the outer skin of the axis) is grounded.
  • the outer conductor may be connected to the ground of the radio frequency chip 1313, and the ground end of the radio frequency chip 1313 is connected to the ground line of the printed circuit board 1311. Alternatively, the outer conductor can be directly connected to the ground line of the printed circuit board 1311.
  • the radio frequency chip 1313 is mounted on a side of the printed circuit board 1311 facing the camera body 12, that is, the rear side of the printed circuit board 1311.
  • the RF circuit 1312 may also include other components that are electrically coupled to the RF chip 1313.
  • the main board 131 may also include other circuit components such as image processing circuits mounted on the printed circuit board 1311.
  • the antenna radiator 132 is electrically connected to the main board 131.
  • the antenna radiator 132 is a planar antenna radiator that is fixedly mounted to the camera body 12.
  • the antenna radiator 132 is a metal plate and can be fixed to a plastic body (not shown) and attached to the camera body 12 together with the plastic body.
  • the plastic body can support the antenna radiator 132 to ensure the stability of the antenna radiator 132.
  • the flexible circuit board 133 is attached to the surface of the antenna radiator 132, and the antenna radiator 132 supports the flexible circuit board 133.
  • the flexible circuit board 133 is electrically connected to the main board 131.
  • the antenna radiator 132 is located between the flexible circuit board 133 and the camera body 12.
  • the antenna radiator 132 can serve as a reinforcing plate for the flexible circuit board 133.
  • the antenna radiator 132 can radiate a wireless signal, and can support the flexible circuit board 133.
  • the antenna radiator 132 and the reinforcing board of the flexible circuit board 133 are combined, so that it is not necessary to provide mutually independent antenna radiators 132 and flexible circuit boards 133.
  • the reinforcing plate, the antenna assembly 13 occupies a small space, spatial multiplexing, high integration, compact structure, and is advantageous for miniaturization of cameras and the like.
  • the antenna radiator 132 includes a first radiating portion 1321 supporting the flexible circuit board 133, a second radiating portion 1322 spaced apart from the first radiating portion 1321, and an end connecting the second radiating portion 1322 with the first A connecting portion 1323 of the radiation portion 1321.
  • the first radiating portion 1321 extends along the top and side faces of the camera body 12.
  • the first radiating portion 1321 includes a first substrate 1324, a second substrate 1325 at an angle to the extending direction of the first substrate 1324, and a third substrate 1326 connecting the first substrate 1324 and the second substrate 1325.
  • the first substrate 1324 extends along the top surface of the camera body 12. In one embodiment, the first substrate 1324 is within the top surface of the camera body 12 without exceeding the edge of the top surface of the camera body 12.
  • the second substrate 1325 extends along the side of the camera body 12.
  • the second substrate 1325 is located on the right side surface of the camera body 12, and the second substrate 1325 is perpendicular to the first substrate 1324.
  • the upper side edge of the second substrate 1325 is lower than the top surface of the camera body 12.
  • the antenna radiator 132 is formed with a yield hole 1327.
  • the landing hole 1327 is formed in the second substrate 1325.
  • the yield hole 1327 can be rectangular. In other embodiments, the relief aperture 1327 can be circular or otherwise shaped.
  • the third substrate 1326 extends generally along the top surface of the camera body 12, adjacent the top surface of the camera body 12 as compared to the first substrate 1324.
  • the side edge of the third substrate 1326 is beyond the right side surface of the camera body 12 and is connected to the second substrate 1325.
  • the junction of the third substrate 1326 and the first substrate 1324 has a circular arc surface transition
  • the junction of the third substrate 1326 and the second base 1325 has a circular arc surface transition.
  • the width of the third substrate 1326 is smaller than the width of the first substrate 1324 and smaller than the width of the second substrate 1325.
  • the first substrate 1324 protrudes away from the main board 131 with respect to the third substrate 1326.
  • the second substrate 1325 protrudes in a direction toward the main board 131 with respect to the third substrate 1326.
  • the second radiating portion 1322 is located on a side of the first radiating portion 1321 near the main board 131. In the illustrated embodiment, the second radiating portion 1322 is located outside of the flexible circuit board 133.
  • the second radiating portion 1322 has an elongated shape. In the illustrated embodiment, the second radiating portion 1322 extends along the side of the third substrate 1326 toward the second substrate 1325. The second radiating portion 1322 is spaced apart from the third substrate 1326 and spaced apart from the second substrate 1325. The second radiating portion 1322 forms an "L"-shaped space between the third substrate 1326 and the second substrate 1325. In one embodiment, the second radiating portion 1322 is bent from the connecting portion 1323 toward the top surface of the camera body 12, and then extends to the right side surface of the camera body 12 and extends beyond the right side surface of the camera body 12.
  • connection portion 1323 is located outside of the flexible circuit board 133.
  • the connecting portion 1323 extends from the front side edge of the first substrate 1321 toward the main board 131, and connects the second radiating portion 1322.
  • the connecting portion 1323 is flush with the first substrate 1321 and extends along the top surface of the camera body 12.
  • the antenna radiator 132 includes a feeding end 1328 extending from one end of the second radiating portion 1322 and the connecting portion 1323, and the feeding end 1328 is electrically connected to the main board 131.
  • the feed end 1328 can be electrically connected to the RF signal output end of the RF chip 1313 on the main board 131.
  • the feed end 1328 can be electrically coupled to the RF signal output of the RF chip 1313 via the inner conductor or leg 134 of the feed line.
  • the feed end 1328 is bent and extended relative to the connecting portion 1323.
  • the feed end 1328 extends substantially perpendicular to the connecting portion 1323 to the top surface of the camera body 12.
  • the feed end 1328 is located outside of the flexible circuit board 133.
  • the antenna radiator 132 includes an extension 1329 extending from the first radiating portion 1321, the extension 1329 being located outside of the flexible circuit board 133.
  • the extension 1329 extends from the first substrate 1324 of the first radiating portion 1321 in a direction away from the third substrate 1326.
  • the extension portion 1329 and the third substrate 1326 are located on opposite sides of the first substrate 1324, respectively located on the left side and the right side of the first substrate 1324.
  • the extension 1329 extends along the top surface of the camera body 12, closer to the top surface of the camera body 12 than the first substrate 1324.
  • the junction of the extension 1329 and the first substrate 1324 has a circular arc surface transition.
  • the extending portion 1329 is provided with a through hole 1320 that can be engaged with the plastic body supporting the antenna radiator 132. One or more through holes 1320 may be opened.
  • the flexible circuit board 133 is attached to the antenna radiator 132 and extends from the front side of the antenna radiator 132 to the main board 131, and can be electrically connected to a connector (not shown) mounted on the front side of the main board 131.
  • the flexible circuit board 133 is mounted with a button 1331 protruding from a side surface of the flexible circuit board 133 facing away from the antenna radiator 132.
  • the button 1331 is located above the first substrate 1324 and protrudes from the top surface of the flexible circuit board 133.
  • a microphone 1332 is mounted on the flexible circuit board 133, and the microphone 1332 is protruded from a side surface of the flexible circuit board 133 facing away from the antenna radiator 132.
  • the microphone 1332 is located outside the second substrate 1325 and protrudes from the right side surface of the flexible circuit board 133.
  • the microphone 1332 is located at a position where the flexible circuit board 133 corresponds to the yielding hole 1327 of the second substrate 1325.
  • a microphone chip (not shown) is connected to the back surface of the microphone 1332, and the bit hole 1327 is used to give way to the microphone chip, so that the structure is more compact.
  • the shape of the yield hole 1327 can be identical to the shape of the microphone chip.
  • other components may also be disposed on the flexible circuit board 133.
  • the shape and structure of the antenna radiator 132 of the antenna assembly 13 can be designed according to the requirements of radiating radio frequency signals of different frequencies and/or the cooperation of the antenna radiator and its surrounding components in practical applications.
  • the camera 10 can be used with a drone that utilizes the camera 10 for aerial photography and the like. Of course, the camera 10 can also be used on other devices or used independently.
  • FIG. 4 is a diagram showing the return loss of the antenna assembly 13 of the embodiment shown in FIGS. 1-3.
  • the antenna assembly 13 has a resonance at 2.3 GHz, 4.3 GHz and 6.5 GHz, respectively.
  • FIG. 5 shows a radiation efficiency diagram of the antenna assembly 13. It can be seen from Fig. 5 that the radiation efficiency of the antenna assembly 13 at the resonance point shown in Fig. 4 is about 1 dB, the radiation efficiency is more than 90%, and the performance of the antenna assembly 13 is good.
  • Figure 6 shows a 3D directional radiation pattern of the antenna assembly 13 at low frequencies with a frequency of 2.6 GHz.
  • Figure 7 shows a 3D directional radiation pattern of the antenna assembly 13 at high frequencies at a frequency of 5.6 GHz.
  • the antenna radiator 132 of the antenna assembly 13 radiates in a three-dimensional direction of the space, and the radiation space is substantially spherical, which satisfies the need for a device such as a camera to radiate signals in various directions.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Studio Devices (AREA)
  • Support Of Aerials (AREA)
  • Details Of Aerials (AREA)

Abstract

La présente invention concerne un ensemble antenne et une camera comprenant l'ensemble antenne. L'ensemble antenne comprend une carte principale, un radiateur d'antenne et une carte de circuit imprimé flexible. Le radiateur d'antenne est connecté électriquement à la carte principale. La carte de circuit imprimé flexible est fixée à une surface du radiateur d'antenne, et le radiateur d'antenne supporte la carte de circuit imprimé flexible.
PCT/CN2017/118969 2017-12-27 2017-12-27 Ensemble antenne et camera comprenant un ensemble antenne WO2019127091A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/CN2017/118969 WO2019127091A1 (fr) 2017-12-27 2017-12-27 Ensemble antenne et camera comprenant un ensemble antenne
CN202110139277.2A CN112886237A (zh) 2017-12-27 2017-12-27 天线组件及相机
CN201780016778.3A CN108780943B (zh) 2017-12-27 2017-12-27 天线组件及包括天线组件的相机

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/118969 WO2019127091A1 (fr) 2017-12-27 2017-12-27 Ensemble antenne et camera comprenant un ensemble antenne

Publications (1)

Publication Number Publication Date
WO2019127091A1 true WO2019127091A1 (fr) 2019-07-04

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/118969 WO2019127091A1 (fr) 2017-12-27 2017-12-27 Ensemble antenne et camera comprenant un ensemble antenne

Country Status (2)

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CN (2) CN112886237A (fr)
WO (1) WO2019127091A1 (fr)

Cited By (1)

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CN115150533A (zh) * 2022-06-16 2022-10-04 杭州海康威视数字技术股份有限公司 一种布控球

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CN115150533B (zh) * 2022-06-16 2024-05-03 杭州海康威视数字技术股份有限公司 一种布控球

Also Published As

Publication number Publication date
CN112886237A (zh) 2021-06-01
CN108780943B (zh) 2021-03-05
CN108780943A (zh) 2018-11-09

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