Abstract: A method for analyzing electromagnetic characteristic includes steps as follows. An electromagnetic evaluation model establishing step is performed, which includes establishing an object unit, a power transmitting unit, and a simulating unit. The object unit is an arbitrary geometry shape. The power transmitting unit has an electromagnetic signal. The simulating unit is defined as at least one base point emitting a plurality of beams to form a plurality of projection points. An electromagnetic reference model is provided, wherein the object unit and the power transmitting unit are combined to form the electromagnetic reference model. A comparing step is performed, wherein a radiation pattern data of the electromagnetic reference model and a radiation pattern data of the electromagnetic evaluation model are obtained by the electromagnetic signal, respectively, and the two radiation pattern data are compared to obtain an electromagnetic gain difference value.

Abstract: Provided is a rapid over-the-air (OTA) production line test platform, including a device under test (DUT), an antenna array and two reflecting plates. The DUT has a beamforming function. The antenna array is arranged opposite to the DUT, and emits beams with beamforming. Two reflecting plates are disposed opposite to each other, and are arranged between the DUT and the antenna array. The beam OTA test of the DUT is carried out by propagation of the beams between the antenna array, the DUT and the two reflecting plates. Accordingly, the test time can be greatly shortened and the cost of test can be effectively reduced. In addition to the above-mentioned rapid OTA production line test platform, platforms for performing the OTA production line test by using horn antenna arrays together with bending waveguides and using a 3D elliptic curve are also provided.

Abstract: The disclosure provides an ultra-wideband non-metal horn antenna, which includes three combinable non-metal elements such as an impedance matching member, a field adjustment member and an outer cover member. The impedance matching member and the field adjustment member are respectively disposed with a first and second groove structures. The field adjustment member is connected between the impedance matching member and the outer cover member. Therefore, the horn antenna of the disclosure can have a more symmetrical radiation pattern, a smaller antenna size, and ultra-wideband performance.

Abstract: The disclosure provides an ultra-wideband non-metal horn antenna, which includes three combinable non-metal elements such as an impedance matching member, a field adjustment member and an outer cover member. The impedance matching member and the field adjustment member are respectively disposed with a first and second groove structures. The field adjustment member is connected between the impedance matching member and the outer cover member. Therefore, the horn antenna of the disclosure can have a more symmetrical radiation pattern, a smaller antenna size, and ultra-wideband performance.

Abstract: A broadband linear polarization antenna structure, including a reference conductive layer, a first patch antenna, a second patch antenna, and a feeding portion, is provided. The reference conductive layer includes through holes. A first short pin is connected between the reference conductive layer and the first patch antenna, and a second short pin is connected between the first patch antenna and the second patch antenna. Each feeding portion penetrates the reference conductive layer through the through hole and is coupled to the first patch antenna.

Abstract: The disclosure provides a coplanar inductor, which includes a first spiral arm, a second spiral arm and a conductive patch. The first spiral arm has a first end and a second end, wherein the first spiral arm spirally extends from the first end of the first spiral arm toward the second end of the first spiral arm from inside to outside. The second spiral arm has a first end and a second end. The second spiral arm extends spirally from the first end of the second spiral arm toward the second end of the second spiral arm from inside to outside. The first end of the second spiral arm is coupled to the first end of the first spiral arm through the conductive patch, and the first spiral arm and the second spiral arm are coplanar.

Abstract: Provided is a rapid over-the-air (OTA) production line test platform, including a device under test (DUT), an antenna array and two reflecting plates. The DUT has a beamforming function. The antenna array is arranged opposite to the DUT, and emits beams with beamforming. Two reflecting plates are disposed opposite to each other, and are arranged between the DUT and the antenna array. The beam OTA test of the DUT is carried out by propagation of the beams between the antenna array, the DUT and the two reflecting plates. Accordingly, the test time can be greatly shortened and the cost of test can be effectively reduced. In addition to the above-mentioned rapid OTA production line test platform, platforms for performing the OTA production line test by using horn antenna arrays together with bending waveguides and using a 3D elliptic curve are also provided.

Abstract: Provided is a rapid over-the-air (OTA) production line test platform, including a device under test (DUT), an antenna array and two reflecting plates. The DUT has a beamforming function. The antenna array is arranged opposite to the DUT, and emits beams with beamforming. Two reflecting plates are disposed opposite to each other, and are arranged between the DUT and the antenna array. The beam OTA test of the DUT is carried out by propagation of the beams between the antenna array, the DUT and the two reflecting plates. Accordingly, the test time can be greatly shortened and the cost of test can be effectively reduced. In addition to the above-mentioned rapid OTA production line test platform, platforms for performing the OTA production line test by using horn antenna arrays together with bending waveguides and using a 3D elliptic curve are also provided.

Abstract: A method for analyzing electromagnetic characteristic includes steps as follows. An electromagnetic evaluation model establishing step is performed, which includes establishing an object unit, a power transmitting unit, and a simulating unit. The object unit is an arbitrary geometry shape. The power transmitting unit has an electromagnetic signal. The simulating unit is defined as at least one base point emitting a plurality of beams to form a plurality of projection points. An electromagnetic reference model is provided, wherein the object unit and the power transmitting unit are combined to form the electromagnetic reference model. A comparing step is performed, wherein a radiation pattern data of the electromagnetic reference model and a radiation pattern data of the electromagnetic evaluation model are obtained by the electromagnetic signal, respectively, and the two radiation pattern data are compared to obtain an electromagnetic gain difference value.

Abstract: A transition device includes a first metal layer, a signaling metal line, an excitation metal piece, a first dielectric layer, a plurality of conductive via elements, a reflector, and a waveguide. The first metal layer has a notch. The notch extends to the interior of the first metal layer, forming a first slot region. The signaling metal line is disposed in the notch. The excitation metal piece is disposed in the first slot region and is coupled to the signaling metal line. The first dielectric layer has a pair of first openings. The first dielectric layer includes a bridging portion disposed between the first openings. The bridging portion is configured to carry the excitation metal piece. The conductive via elements penetrate the first dielectric layer and are coupled to the first metal layer. The conductive via elements at least partially surround the first slot region.

Abstract: Provided is a rapid over-the-air (OTA) production line test platform, including a device under test (DUT), an antenna array and two reflecting plates. The DUT has a beamforming function. The antenna array is arranged opposite to the DUT, and emits beams with beamforming. Two reflecting plates are disposed opposite to each other, and are arranged between the DUT and the antenna array. The beam OTA test of the DUT is carried out by propagation of the beams between the antenna array, the DUT and the two reflecting plates. Accordingly, the test time can be greatly shortened and the cost of test can be effectively reduced. In addition to the above-mentioned rapid OTA production line test platform, platforms for performing the OTA production line test by using horn antenna arrays together with bending waveguides and using a 3D elliptic curve are also provided.

Abstract: A transition device includes a first metal layer, a signaling metal line, an excitation metal piece, a first dielectric layer, a plurality of conductive via elements, a reflector, and a waveguide. The first metal layer has a notch. The notch extends to the interior of the first metal layer, forming a first slot region. The signaling metal line is disposed in the notch. The excitation metal piece is disposed in the first slot region and is coupled to the signaling metal line. The first dielectric layer has a pair of first openings. The first dielectric layer includes a bridging portion disposed between the first openings. The bridging portion is configured to carry the excitation metal piece. The conductive via elements penetrate the first dielectric layer and are coupled to the first metal layer. The conductive via elements at least partially surround the first slot region.

Abstract: The invention provides an antenna cover for protecting an antenna element. The antenna cover includes a cover structure and a first non-smooth element. A hollow portion is formed in the cover structure. The first non-smooth element is distributed on a first inner edge of the cover structure. The first non-smooth element is configured to enhance the gain of the antenna element and increase the width of the main beam of the antenna element.

Abstract: A dish antenna is provided. The dish antenna includes a dish, a bracket, a supporter and a receiver. The bracket is connected to the dish. The supporter is connected to the bracket. The receiver is connected to the supporter and corresponding to the dish. The bracket includes a base, a first wing plate, a second wing plate and a plurality of fastening portions. The base faces the dish. The bracket is affixed to the dish through the fastening portions. The first wing plate is disposed on a first side of the base. The second wing plate is disposed on a second side of the base. The first side is opposite to the second side. The first wing plate, the second wing plate and the fastening portions are integrally formed with the base.

Abstract: A support assembly is provided and includes an adapter, a stand, and a dish backing structure. The adapter includes two side plates and an upper plate. The side plates are respectively located at the two sides of the adapter. The upper plate is connected to the side plates and has a lower location hole. The stand is connected to the adapter. The dish backing structure has a receiving portion and includes a top wall and two side walls respectively located at the both sides of the receiving portion. The top wall has an upper location hole. When the receiving portion is connected to the adapter, a portion of the top wall abuts against the upper plate, and a gap is formed between the top wall and the upper plate. In addition, the upper location hole is aligned with the lower location hole.

Abstract: A dish antenna is provided. The dish antenna includes a dish, a bracket, a supporter and a receiver. The bracket is connected to the dish. The supporter is connected to the bracket. The receiver is connected to the supporter and corresponding to the dish. The bracket includes a base, a first wing plate, a second wing plate and a plurality of fastening portions. The base faces the dish. The bracket is affixed to the dish through the fastening portions. The first wing plate is disposed on a first side of the base. The second wing plate is disposed on a second side of the base. The first side is opposite to the second side. The first wing plate, the second wing plate and the fastening portions are integrally formed with the base.

Abstract: A satellite antenna is provided. The satellite antenna includes a first member, a second member and a connecting unit. A first opening is formed on the first member. A second opening is formed on the second member. The connecting unit fixes the first member to the second member. The connecting unit includes a connection post, an abutting element and a rotatable stopper. The connection post includes a first end and a second end. The abutting element pivots on the first end of the connection post. The rotatable stopper pivots on the second end of the connection post, wherein in a fixing state, the connection post passes through the first opening and the second opening, the abutting element pulls the rotatable stopper to tightly abut a first surface of the first member, and the first member is fixed to the second member.

Abstract: A waveguide filter is provided. The waveguide filter includes a pipe and a first rib structure. The pipe includes a first inner wall. The first rib structure includes a first rib. The first rib is disposed in the pipe and formed on the first inner wall. The first rib includes a first section and a second section, wherein the first section and the second section extend on a first straight line and are perpendicular to the first inner wall, and a first gap is formed between the first section and the second section, and a first gap distance of the first gap is between 0.1 to 1.2 mm.

Abstract: A support assembly is provided and includes an adapter, a stand, and a dish backing structure. The adapter includes two side plates and an upper plate. The side plates are respectively located at the two sides of the adapter. The upper plate is connected to the side plates and has a lower location hole. The stand is connected to the adapter. The dish backing structure has a receiving portion and includes a top wall and two side walls respectively located at the both sides of the receiving portion. The top wall has an upper location hole. When the receiving portion is connected to the adapter, a portion of the top wall abuts against the upper plate, and a gap is formed between the top wall and the upper plate. In addition, the upper location hole is aligned with the lower location hole.