An electronic device including an antenna module is provided. The electronic device includes a 5th generation (5G) antenna module that includes an antenna array, at least one conductive region operating as a ground with respect to the antenna array, and a first communication circuit feeding a power to the antenna array to communicate through a millimeter wave signal, and a printed circuit board (PCB) that includes a second communication circuit and a ground region. The second communication circuit feeds the power to an electrical path at least including the at least one conductive region and transmits or receives a signal in a frequency band different from a frequency band of the millimeter wave signal based on the electrical path supplied with the power and the ground region.

An electronic device in accordance with an example embodiment of the disclosure includes a first non-conductive cover defining a first surface of the electronic device, a second non-conductive cover including a first portion defining a second surface of the electronic device, and a second portion defining one portion of a lateral surface of the electronic device, a conductive frame defining an other portion of the lateral surface of the electronic device, and an antenna module, wherein the antenna module is positioned so that the one surface is substantially perpendicular to the second surface at a position within a specified proximity to the lateral surface of the electronic device and is configured to transmit and/or receive a signal through the lateral surface.

Provided is a scan driving circuit including a plurality of unit scan driving circuits, at least one of the plurality of unit scan driving circuits including: a first transistor configured to receive a prior scan signal in synchronization with a first clock signal and to respond to an enable level of the prior scan signal to output a second clock signal as a corresponding scan signal during one cycle of the first clock signal; a second transistor coupled between the first transistor and a first voltage; and a third transistor coupled to a gate of the second transistor and configured to be turned on by a first signal. A width of a first wire configured to transfer the first clock signal and a width of a second wire configured to transfer the second clock signal are larger than that of a third wire configured to transfer the first signal.

This application provides a terminal antenna, including a first radiator, a second radiator, a third radiator, a first regulating circuit, and a second regulating circuit. The third radiator includes a low frequency radiator and a medium-high frequency radiator. The first regulating circuit is configured to adjust a frequency of a resonance of a ¾λ, mode of a medium-high frequency produced by the low frequency radiator to be less than a frequency of a resonance of a left-handed antenna pattern. The second regulating circuit is configured to adjust the frequency of the resonance of the left-handed antenna pattern to be greater than the frequency of the resonance of the ¾λ, mode of the medium-high frequency produced by resonating by the low frequency radiator. Values of both the first distance and the second distance are less than 1/16λ, of a frequency band in which the third radiator produces a low frequency.

An electronic device is provided. The electronic device includes a first substrate, a multilayer structure, and a passivation layer. The multilayer structure is disposed on the first substrate. The multilayer structure includes a first conductive layer and a second conductive layer disposed on the first conductive layer. The passivation layer is disposed on the second conductive layer. In addition, a thermal expansion coefficient of the second conductive layer is between a thermal expansion coefficient of the first conductive layer and a thermal expansion coefficient of the passivation layer.

An antenna device according to an embodiment includes an array antenna including a plurality of antenna elements, a first flexible printed circuit board (FPCB) including a plurality of first transmission lines which are electrically connected to the plurality of antenna elements and have different lengths, and a radio frequency integrated circuit (RFIC) electrically connected to the plurality of first transmission lines.

An antenna structure according to an embodiment of the present disclosure includes a dielectric layer, and an antenna unit disposed on a top surface of the dielectric layer. The antenna unit includes a radiator including convex portions and concave portions, a transmission line including a first transmission line and a second transmission line that extend in different directions to be connected to the radiator, and a parasitic element disposed to be adjacent to the transmission line and electrically and physically separated from the transmission line and the radiator. A length of the parasitic element in an extension direction of the transmission line is from 45% to 70% of a half wavelength (λ/2) at a maximum resonance frequency from the antenna unit.

Antenna structures can include an additively manufactured engineered fingerprint (AMEF). AMEF antenna features facilitate individual or type classification of an unknown source antenna. As described herein, physical features can be included in an additively manufactured antenna to facilitate source identification, such as without sacrificing antenna performance. In general, AMEF techniques can improve physical layer security, such as without dramatically increasing production cost or decreasing production throughput, as compared to other approaches.

Various embodiments relate to an electronic device that supports millimeter wave communication. The electronic device may include: a housing; an antenna structure including at least one antenna comprising a portion of the housing or positioned in the housing, and including an annular conductive structure comprising a conductive material, the annular conductive structure having a first surface facing an outside of the housing, a second surface facing a direction opposite the first surface, an internal space defined by the first surface and the second surface, and a plurality of slots having a repeating pattern and formed through the first surface to the internal space; a conductive member comprising a conductive material disposed in the internal space; a wireless communication circuit electrically connected with the conductive member and configured to form a directional beam using the antenna structure; and a ground electrically connected to the annular conductive structure.

A patch antenna device configured to receive a radio communication signal includes a circuit board, a patch antenna, and a parasitic element. The circuit board has a signal processing circuit placed thereon. The patch antenna is stacked on the circuit board and has a quadrangular radiation element. The parasitic element is disposed above the patch antenna so as to improve antenna gain characteristics of the patch antenna and configured such that the length of the upper side of the parasitic element is shorter than the width in a plan view of the radiation element of the patch antenna and that the length between the upper and lower sides of the parasitic element is longer than the length between the upper and lower sides of the radiation element of the patch antenna.