Abstract: An integrated millimeter-wave chip package structure including an interposer structure, a millimeter-wave chip and a substrate is provided. The interposer structure includes at least an antenna pattern and at least a plated through-hole structure penetrating through the interposer structure and connected to the at least one antenna pattern. The millimeter-wave chip is electrically connected to the at least antenna pattern located either above or below the millimeter-wave chip through the at least plated through-hole structure.

Abstract: A series fed microstrip antenna structure includes a substrate, a patterned conductive layer disposed on the upper surface of the substrate, and a grounding layer disposed on the lower surface of the substrate. The patterned conductive layer includes a conductive wire and a plurality of radiator units, wherein each radiator unit is connected with the conductive wire by a feed line. A matched radiator unit disposed on the substrate and electrically connected with the conductive wire. With such configuration, the structure is simple and facilitates the massive production. Also, the antenna bandwidth is increased, and the antenna gain is improved.

Abstract: An inset type feed antenna structure is disclosed includes a substrate, a patterned conductive layer disposed on an upper surface of the substrate, and a grounding layer disposed on a lower surface of the substrate. The patterned conductive layer includes a conductive line and a plurality of radiation units, wherein each radiation units includes a conductive patch provided with a notch on one side thereof, and a feeding line electrically connecting the conductive line and the notch, wherein the feeding line is a quarter-wave feeding line. The present invention not only decreases the distance between the radiation units and the conductive line to control the vertical side lobes, but also increases the impedance of each radiation unit, so that more radiation units can be fed in.

Abstract: A radar device for vehicles includes a waveform generator, generating an FMCW; a transmit antenna, transmitting the FMCW; a first receive antenna, receiving a first reflected wave of the FMCW; a first mixer, receiving the FMCW and the first reflected wave to produce a first mixed signal; a second receive antenna, receiving a second reflected wave of the FMCW; a second mixer, receiving the FMCW and the second reflected wave to produce a second mixed signal; and a digital signal processor, receiving and processing the first mixed signal and the second mixed signal to produce a diversity receive signal. By use of a multipath reflection compensation, the instability issue of the signal from a remote target object is resolved.

Abstract: A dual slot SIW antenna unit includes a first substrate, a conductive layer, plural unit radiation members, a second substrate, a ground conductive layer, and two first conductor pillars. The plural unit radiation members are disposed in parallel on the conductive layer, and each unit radiation member includes at least a pair of slots that are disposed in parallel. The two first conductive pillars are disposed between two neighboring unit radiation members and electrically connect the feed routing layer and the conductive layer. A dual slot SIW antenna array module is also disclosed. By use of the dual slot structure, more radiation members are allowed to be included in a limited square measure for improving the antenna gain.

Abstract: A method for measuring a permittivity (?) of a material (30) includes following steps. A sensing rod (14) of a material level sensor (10) inserts into a tank (20). The material level sensor (10) proceeds with a material level measurement of the material (30) to obtain a first feature value. The material level sensor (10) is vertically moved with a vertical distance (Hair). The material level sensor (10) proceeds with the material level measurement to obtain a second feature value, and subtracts the first feature value by the second feature value to obtain a feature value variation, and calculates the feature value variation to obtain the permittivity (?) of the material (30).

Abstract: A focusing antenna includes a feed-in antenna unit, a supportive reflecting unit and a main reflecting unit. The feed-in antenna unit radiates polarization signals polarizing in a first direction. The supportive reflecting unit includes a plurality of reflecting elements reflecting the polarization signals to generate a plurality of first reflected signals. The main reflecting unit compensates phases of the first reflected signals and rotates a direction of the first reflected signals to generate a plurality of second reflected signals having an electric field with polarization in a second direction perpendicular to the first direction.

Abstract: An integrated millimeter-wave chip package structure including an interposer structure, a millimeter-wave chip and a substrate is provided. The interposer structure includes at least an antenna pattern and at least a plated through-hole structure penetrating through the interposer structure and connected to the at least one antenna pattern. The millimeter-wave chip is electrically connected to the at least antenna pattern located either above or below the millimeter-wave chip through the at least plated through-hole structure.

Abstract: An integrated antenna package including a laminated structure and a multi-layered substrate is provided. The laminated structure includes at least a chip embedded therein and at least a plated through-hole structure penetrating the laminated structure. The multi-layered substrate is stacked on the laminated structure. The multi-layered substrate includes at least a metal layer located on one side of the multi-layered substrate away from the laminated structure and the metal layer includes at least an antenna pattern located above the chip. The multi-layered substrate includes at least a plated via and through-hole structure penetrating the multi-layered substrate and electrically connected to the chip, so that the antenna pattern is electrically connect with the chip. Also, the manufacturing method of the integrated antenna package is provided.

Abstract: A method for determining a DOA (Direction of Arrival) comprises the following steps: (a) providing at least two antennas arranged with a squint angle; (b) producing at least two base beams between two adjacent base beams; (c) every two virtual beams of the multiple virtual beams which cross together at a specific angle are define to a virtual beam set; (d) synthesizing the two virtual beams of each one of the virtual beam sets to be a monopulse; and (e) determining the DOA of the object according to comparison between magnitude of demodulated signals corresponding to the monopulses. A device for estimating a DOA is also disclosed.

Abstract: An integrated contactless signal transfer apparatus makes use of the rule of filter design to transfer signal from a chip to the transmission lines of a PCB. The integrated contactless signal transfer apparatus includes a substrate, a chip disposed on the substrate, a first resonator unit disposed on the chip for receiving a first signal with a first frequency generated from the chip, a PCB positioned at a distance opposite to the substrate, and a second resonator unit disposed on the PCB. The first signal passes through the first resonator unit to generate a contactless coupling between the first and second resonator units, so the second resonator unit generates a second signal. The second signal has a second frequency substantially equal to the first frequency.

Abstract: An integrated contactless signal transfer apparatus makes use of the rule of filter design to transfer signal from a chip to the transmission lines of a PCB. The integrated contactless signal transfer apparatus includes a substrate, a chip disposed on the substrate, a first resonator unit disposed on the chip for receiving a first signal with a first frequency generated from the chip, a PCB positioned at a distance opposite to the substrate, and a second resonator unit disposed on the PCB. The first signal passes through the first resonator unit to generate a contactless coupling between the first and second resonator units, so the second resonator unit generates a second signal. The second signal has a second frequency substantially equal to the first frequency.

Abstract: An integrated antenna is provided. The integrated antenna includes a first resonant element disposed on a chip, and receiving a first signal having a frequency from the chip; and a second resonant element disposed on a substrate, wherein the chip is disposed on the substrate, and the first signal enables a non-contact resonant coupling to be established between the first resonant element and the second resonant element due to the frequency to cause the second resonant element to generate and radiate a second signal.

Abstract: A method for determining a DOA (Direction of Arrival) comprises the following steps: (a) providing at least two antennas arranged with a squint angle; (b) producing at least two base beams between two adjacent base beams; (c) every two virtual beams of the multiple virtual beams which cross together at a specific angle are define to a virtual beam set; (d) synthesizing the two virtual beams of each one of the virtual beam sets to be a monopulse; and (e) determining the DOA of the object according to comparison between magnitude of demodulated signals corresponding to the monopulses. A device for estimating a DOA is also disclosed.

Abstract: A printed filtering antenna is provided. This filtering antenna comprises an antenna part and a coupled line resonator. The antenna part is directly connected to a coupled line resonator and occupies an antenna area. The coupled line resonator provides a filtering mechanism together with the antenna part. The coupled line resonator comprises a short-circuited stub and an open-circuited stub. The short-circuited stub comprises an open-circuited end and a short-circuited end connected to ground. The open-circuited stub is parallel to the short-circuited stub. The open-circuited stub comprises a first end and a second end. The first end is connected to the feed point and is corresponding to the open-circuited end of the short-circuited stub such that the open-circuited stub is coupled to the short-circuited stub.

Abstract: A band-notched ultra-wideband antenna comprises a top layer non-uniform short-circuit metal patch, a middle layer metal radiation patch, and a bottom layer metal patch. The bottom layer metal patch includes a coupled open/short circuit stub which is set close to the middle layer metal radiation patch. The equivalent circuit of the top layer non-uniform short-circuit metal patch is a parallel LC resonator, and the equivalent circuit of the coupled open/short circuit stub is a series LC resonator. The resonant frequency of the top layer non-uniform short-circuit metal patch is equivalent to the resonant frequency of the coupled open/short circuit stub, so as to function as a second-order bandstop filter to yield high notch-band-edge selectivity without increasing total circuit area of the band-notched ultra-wideband antenna.

Abstract: An integrated antenna is provided. The integrated antenna includes a first resonant element disposed on a chip, and receiving a first signal having a frequency from the chip; and a second resonant element disposed on a substrate, wherein the chip is disposed on the substrate, and the first signal enables a non-contact resonant coupling to be established between the first resonant element and the second resonant element due to the frequency to cause the second resonant element to generate and radiate a second signal.

Abstract: A printed filtering antenna is provided. This filtering antenna comprises an antenna part and a coupled line resonator. The antenna part is directly connected to a coupled line resonator and occupies an antenna area. The coupled line resonator provides a filtering mechanism together with the antenna part. The coupled line resonator comprises a short-circuited stub and an open-circuited stub. The short-circuited stub comprises an open-circuited end and a short-circuited end connected to ground. The open-circuited stub is parallel to the short-circuited stub. The open-circuited stub comprises a first end o and a second end. The first end is connected to the feed point and is corresponding to the open-circuited end of the short-circuited stub such that the open-circuited stub is coupled to the short-circuited stub.

Abstract: An electromagnetic band-gap structure includes a circuit board, a ground plane and a plurality of electromagnetic band-gap units. The circuit board includes a first side and a second surface, and the ground plane disposed on the first side. The plurality of electromagnetic band-gap units are located on both the first surface and the second surface and connected to each other along an edge of the ground plane. Every electromagnetic band-gap unit includes a first strip line, a second strip line and a via. The first strip line is located on the first side, including a first relative long strip line and a first relative short strip line connected to the ground. The second strip line is located on the second side. The second strip line is connected to the first strip line of the adjacent electromagnetic band-gap unit through the via.

Abstract: The present invention discloses a planar antenna including a substrate, a ground plane and a feed line. The ground plane is disposed on one side of the substrate. The ground plane includes a hollow portion. The feed line disposed on another side of the substrate and corresponding to the hollow portion for feeding a signal. The present invention also discloses a planar antenna including a substrate, a ground plane and a feed line. The ground plane is disposed on one side of the substrate. The ground plane includes a first hollow portion and a second hollow portion. The feed line is disposed on another side of the substrate and having a first branch feed portion and a second branch feed portion for feeding a signal, and the first branch feed portion and the second branch feed portion are aligned with the first hollow portion and the second hollow portion respectively.