TRON FUTURE TECH INC.

A method of forming an antenna device includes: receiving a substrate formed of glass; and forming a redistribution layer (RDL) over the substrate. The formation of the RDL includes: depositing a first metallization layer over a first surface of the substrate; depositing a first patterned dielectric layer over the first metallization layer, wherein the first patterned dielectric layer has a first thickness; depositing a second metallization layer over the first patterned dielectric layer; and forming a second patterned dielectric layer over the second metallization layer. The second dielectric layer comprises a photoimageable dielectric (PID) material. The second patterned dielectric layer has a second thickness at least twice the first thickness.

A wireless communication system includes a plurality of antennas, and a plurality of RF chips, arranged in a row and coupled to the antennas, for providing a plurality radio-frequency (RF) output signals to the antennas according to an RF signal. The wireless communication system also includes a transmission line arranged to be a straight line in parallel to the row, and to connect to the RF chips, wherein each of the RF chips is arranged to receive the RF signal by coupling a voltage signal on a corresponding connecting terminal of the transmission line, and a resistive load, coupled to a first end of the transmission line. A second end of the transmission line is arranged to receive the RF signal.

The present application discloses a communication system including a digitized subarray, a data generator, a modulator, a digitized control unit, and a signal generation unit. The digitized subarray includes a plurality of first transmitters, each including a power amplifier for amplifying an RF signal and an antenna element for transmitting the RF signal amplified by the first power amplifier. The data generator produces a digital data for transmission, and the modulator converts the digital data into a symbol according to a predetermined signal modulation scheme. The digitized control unit selects a portion of the first transmitters in the digitized subarray for performing amplification and transmission according to an amplitude of the symbol. The signal generation unit generates the RF signal and provides the RF signal to the selected portion of first transmitters according to the symbol.

A wireless communication system includes a plurality of antennas, and a plurality of RF chips, arranged in a row and coupled to the antennas, for providing a plurality radio-frequency (RF) output signals to the antennas according to an RF signal. The wireless communication system also includes a transmission line arranged to be a straight line in parallel to the row, and to connect to the RF chips, and a resistive load, coupled to a first end of the transmission line. A second end of the transmission line is arranged to receive the RF signal.

An antenna package is provided. The antenna package includes a glass substrate, a plurality of antennas, a multi-layer circuit structure, a plurality of radio frequency chips, and a molding layer. The glass substrate has a first surface and a second surface. The plurality of antennas are arranged on the first surface of the glass substrate. The multi-layer circuit structure has a first surface and a second surface. The plurality of radio frequency chips are arranged on the first surface of the multi-layer circuit structure. The second surface of the glass substrate is adhered to the second surface of the multi-layer circuit structure. The molding layer covers the RF chips on the first surface of the multi-layer circuit structure, and forms a continuous encapsulation to the RF chips.

A controller includes a processor and a storage device storing instructions. The instructions, when executed by the processor, cause the processor to: obtain first control information on a first satellite constellation; establish a communication link between the controller and another controller of a second satellite constellation; receive second control information on the second satellite constellation from the another controller via the communication link; and perform data communication without using an intersatellite link, according to the first and second control information. The first control information indicates a first link quality between a user terminal and a first satellite of the first satellite constellation, and the second control information indicates a second link quality between the user terminal and a second satellite of the second satellite constellation. When the second link quality is higher than the first link quality, the controller selects the second satellite for data transmission.

An axial ratio compensation method performed by an antenna system including an antenna array having antenna elements is provided. The axial ratio compensation method includes: receiving, by the antenna array, a first linearly polarized beam from a predetermined direction by enabling respective first ports of the antenna elements, so that the antenna array generates a first radio frequency (RF) signal; receiving, by the antenna array, a second linearly polarized beam from the predetermined direction by enabling respective second ports of the antenna elements, so that the antenna array generates a second RF signal, wherein the first linearly polarized beam and the second linearly polarized beam are substantially orthogonal; and compensating at least one of a phase difference and a magnitude difference between the first RF signal and the second RF signal to compensate an axial ratio of the antenna array at the predetermined direction.

An axial ratio compensation method performed by an antenna system including an antenna array having antenna elements is provided. The axial ratio compensation method includes: when first ports of the antenna elements are excited, controlling phases at the first ports according to first beamforming information for driving the antenna array to generate a first linearly polarized beam according to a predetermined direction; when second ports of the antenna elements are excited, controlling phases at the second ports according to second beamforming information for driving the antenna array to generate a second linearly polarized beam according to the predetermined direction; compensating at least one of a phase difference an electric field magnitude difference between the first and second linearly polarized beams to compensate an axial ratio of a predetermined circularly polarized beam directed toward the predetermined direction.

A radio frequency (RF) receiver includes a radiating element, a chip and a phase shifting circuit. The radiating element is arranged to receive an RF input signal to produce a plurality of electrical signals. The chip includes an amplifier circuit. The amplifier circuit is configured to receive a plurality of phase shifted signals from a plurality of input terminals respectively, and amplify the phase shifted signals to generate an RF output signal. The phase shifting circuit is located outside the chip, and coupled to the output terminals and the input terminals. The phase shifting circuit is arranged to phase shift the electrical signals and accordingly generate the phase shifted signals. The phase shifting circuit and the radiating element are formed on a same substrate.