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.

A vehicle radar system, apparatus and method use a radar control processing unit to control an RF transmitter unit to generate a radiated beam by a long and medium range radar (LMRR) beam shaping antenna array which has a range coverage pattern with more power concentrated along a central direction axis for long range detection and less power spread off to sides of the central direction axis for medium range detection, wherein the LMRR beam shaping antenna array includes a plurality of transmit radiator elements stacked over a power dividing feeding network and separated by a conductive coupling aperture layer comprising a plurality of coupling apertures such that each transmit radiator element is aligned through a corresponding coupling aperture to a corresponding feeding line conductor from the power dividing feeding network.

A radio communication apparatus includes an RF circuit formed on one surface of a printed board and configured to generate an RF signal, a transmission line configured to transmit the RF signal, a transmission line configured to transmit a signal different from the RF signal, a ground layer formed on another surface of the printed board, an antenna element configured to emit the RF signal supplied from the RF circuit through the transmission line, and a connection layer configured to bond together the antenna element and the ground layer. The antenna element includes a plurality of layered dielectric substrates, a metal film formed on surfaces of them, and a through hole formed to penetrate the dielectric substrate closest to the printed board. A part of the transmission line is disposed between any of the plurality of layered dielectric substrates.

A planar antenna array comprises two or more linear arrays of radiation elements, said linear arrays being substantially arranged in parallel, a first connecting unit connecting first ends of said two or more linear arrays, a second connecting unit connecting second ends of said two or more linear arrays, and a feed port at least at one end of each one of said first and second connecting units for reception of a feed signal.

Antenna systems have an RF connector, a PCB dipole antenna, and a radome. The RF connector provides a direct connection to the PCB and limits PIM. An omni-directional WiFi antenna has a pair of horizontal dipole antennas on a PCB having different wavelengths and same frequency. An omni-directional UMTS dual antenna has a vertical arrangement of two independent antennas on a PCB and has a jumper printed circuit board connecting the RF connector to the upper antenna. Corresponding connectors, radomes, and ways of combining antenna elements on a single PCB are also disclosed. A single frequency omnidirectional antenna includes both half and full wavelength dipole elements. A plus-shaped radome enhances the omnidirectional radiation pattern of the enclosed antenna. A jumper printed circuit board allows independent antennas on a single circuit board without the degradation of internal coaxial connections. The connector provides a direct interface with a circuit board to reduce the number of parts and also reduce passive intermodulation.

An array antenna includes a dielectric substrate, and a plurality of radiating elements being arranged linearly and provided on a first face of the dielectric substrate, each of the plurality of radiating elements having linear polarization and a rotation reference point, wherein one or more radiating elements included in the plurality of radiating elements are rotated differently with respect to the corresponding rotation reference positions each other.

The present disclosure relates to a radar apparatus and a method for processing a signal using a radar apparatus, and more particularly, to an apparatus and a method for receiving and processing reception signals having different polarization characteristics using one array antenna. Specifically, the present disclosure provides a radar apparatus including: a long-range transmission antenna unit including one or more long-range transmission array antennae which transmit a first polarized transmission signal; a short-range transmission antenna unit including one or more short-range transmission array antennae which transmit a second polarized transmission signal; a complex array antenna unit which includes one or more complex array antennae receiving a first polarized reception signal and a second polarized reception signal which are received by reflecting the first polarized transmission signal and the second polarized transmission signal from a target; and a signal processing unit which detects the target using the first polarized reception signal and the second polarized reception signal, in which the first polarized reception signal has a cross polarization characteristic with respect to the second polarized reception signal, and a radar signal processing method.

An antenna element for a multi-band antenna device includes a dielectric body provided with one or more metal layers. The dielectric body includes a base plate and one or more wall elements arranged on the base plate. One or more first radiating elements and one or more second radiating elements are arranged on the base plate, and are configured to radiate in a first and a second frequency band, respectively. A first feeding network is connected to the first radiating elements and a second feeding network is connected to the second radiating elements, for operating the first and second radiating elements as a first and second antenna array, respectively. The first feeding network is provided, at least partly, as a metal layer of the one or more metal layers on the one or more wall elements.

An elementary microstrip antenna includes a stack of layers, stacked in a direction z, the stack comprising: a first conductive radiating element of disc shape having a first centre, an axis in the direction z and passing through the first centre being called the central axis; a coupling assembly configured to couple an exciting device and the first radiating element, the coupling assembly comprising: a first slot comprising a centre called the slot centre located on the central axis; a second slot comprising a centre coincident with the slot centre, and substantially perpendicular to the first slot, the first and second slots each comprising circularly arcuate ends on the same circle centred on the slot centre; the slots and the stacked layers being configured so that a transverse footprint of the elementary antenna is disc-shaped.

An electronic device includes a substrate, plural varactors, a memory element, a driving unit and plural antenna elements. Each varactor is defined with a capacitor-voltage characteristic curve. The memory element is defined with one or more lookup tables for recording the capacitance values and varactor voltage values of the capacitor-voltage characteristic curve. The driving unit outputs plural voltage signals respectively to the varactors, and each voltage signal respectively provided with one varactor voltage value. Each antenna element is provided with various phase values in response to the capacitance values of the corresponding varactor. A selective one of the varactor voltage values in response to the required capacitance value of the corresponding varactor is found out from the lookup table(s) and delivered by the driving unit. The antenna elements are together enabled to form a wave beam with a characteristic wavefront in accordance with the capacitance values