Antenna and electronic device comprising same
地域：
Gyeonggi-do
摘要
Disclosed is an electronic device including a housing including a front surface, a rear surface, and a side member, a rigid printed circuit board including a first ground, a flexible printed circuit board including a second ground and extended toward the side surface from one end of the rigid printed circuit board, a plurality of antenna elements mounted on the flexible printed circuit board and radiating a millimeter wave signal, a support member fixing the flexible printed circuit board to be at a predetermined angle with the rear surface, and a communication circuit, the first ground and the second ground allows a radiation pattern of the millimeter wave signal to have directivity in a direction of the side surface, by shielding a component, which is radiated toward at least part of the front surface or the rear surface, of a millimeter wave signal radiated from the plurality of radiators.
說明書
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This application is a National Phase Entry of PCT International Application No. PCT/KR2018/014670, which was filed on Nov. 27, 2018, and claims a priority to Korean Patent Application No. 10-2017-0160540, which was filed on Nov. 28, 2017, the contents of which are incorporated herein by reference.
Embodiments disclosed in this specification refer to an antenna and an electronic device including an antenna.
As an information technology (IT) develops, various types of electronic devices are widely being supplied. An electronic device may communicate with any other electronic device or a base station, using an antenna.
Nowadays, as the network traffic of a mobile device significantly increases, next-generation mobile communication technology using a signal in an ultra-high-frequency band, for example, 5th generation (5G) technology is being developed. When the signal in the ultra-high-frequency band is used, a wavelength length of the signal may become short to a millimeter unit. Also, because the bandwidth may be used more widely, a significant amount of information may be transmitted or received. Because an antenna array has an effective isotropically radiated power (EIRP) greater than a single antenna, the antenna array may transmit/receive various kinds of data more effectively. The signal in the ultra-high-frequency band may be referred to as a “so-called millimeter wave signal”.
權(quán)利要求
The invention claimed is:1. An electronic device comprising:a housing including a front surface, a rear surface facing away from the front surface, and a side member surrounding a space between the front surface and the rear surface, wherein the front surface is formed of a dielectric substance having first permittivity and the rear surface is formed of a dielectric substance having second permittivity; a rigid printed circuit board disposed inside the housing and including a first ground; a flexible printed circuit board including a second ground and extended toward the side surface from one end of the rigid printed circuit board; a plurality of antenna elements mounted on the flexible printed circuit board and configured to radiate a millimeter wave signal; a support member fixing the flexible printed circuit board to be at a predetermined angle with the rear surface; and a communication circuit electrically connected to the plurality of antenna elements and configured to communicate using the millimeter wave signal, wherein the first ground and the second ground allow a radiation pattern of the millimeter wave signal to have directivity in a direction of the side surface, by shielding a component, which is radiated toward at least part of the front surface or the rear surface, of a millimeter wave signal radiated from the plurality of radiators. 2. The electronic device of claim 1 , wherein the plurality of antenna elements is spaced at a specified interval and mounted on the flexible printed circuit board. 3. The electronic device of claim 1 , wherein the support member fixes at least part of the flexible printed circuit board to be bent in a direction of the front surface from the direction of the side surface. 4. The electronic device of claim 1 , wherein the support member fixes at least part of the flexible printed circuit to be bent in a direction of the rear surface from the direction of the side surface. 5. The electronic device of claim 1 , wherein a second wave blocking region where the second ground shields a component, which is radiated toward at least part of the front surface or the rear surface, of a millimeter wave signal radiated from the plurality of antenna elements is wider than a first wave blocking region where the first ground shields a component, which is radiated toward at least part of the front surface or the rear surface, of a millimeter wave signal radiated from the plurality of antenna elements. 6. The electronic device of claim 1 , further comprising:a wave absorber disposed to be spaced from the printed circuit board by a specified distance, wherein the wave absorber absorbs a portion of a component, which is radiated toward the front surface or the rear surface, of the millimeter wave signal radiated from the plurality of radiators. 7. The electronic device of claim 1 , further comprising:a reflection member disposed to be spaced from the printed circuit board by a specified distance, wherein the reflection member reflects a portion of a component, which is radiated toward the front surface or the rear surface, of the millimeter wave signal radiated from the plurality of radiators. 8. The electronic device of claim 1 , wherein the plurality of antenna elements operates as a dipole antenna. 9. The electronic device of claim 1 , wherein the plurality of antenna elements operates as a monopole antenna. 10. The electronic device of claim 1 , further comprising:a patch antenna array electrically connected to the communication circuit, wherein the patch antenna array is disposed on the printed circuit board to face the front surface or the rear surface and radiates the millimeter wave signal. 11. The electronic device of claim 10 , wherein the plurality of antenna elements radiate a millimeter wave signal including a first frequency band, andwherein the patch antenna array radiates a millimeter wave signal including a second frequency band. 12. The electronic device of claim 11 , wherein the first frequency band is identical to the second frequency band. 13. The electronic device of claim 1 , wherein the millimeter wave signal has a frequency between 20 GHz and 100 GHz. 14. The electronic device of claim 1 , wherein the first permittivity and the second permittivity have the same magnitude. 15. The electronic device of claim 1 , wherein the support member is implemented with at least one of a cushion, a rib, a bracket, and a part of the housing.
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