Abstract:
An end fire circularly polarized (CP) substrate integrated waveguide (SIW) horn antenna and a method of manufacturing thereof are described. The antenna includes an input section for receiving radio frequency (RF) waves from a source; and a body extending from the input section for receiving the RF waves from the input section, the body comprising a plurality of radiating units, the plurality of radiating units being configured to radiate circularly polarized waves (CP) in a far field, wherein apertures of the plurality of radiating unit being located along an edge of a planar dielectric substrate, and wherein the horn antenna is in a planar form.
Abstract:
Described is a printed circuit antenna array including at least one castellated substrate. Also described is a stacked patch antenna array having at least one castellated substrate. The at least one castellated substrate having first and second opposing surfaces and a first array of antenna elements disposed on a first one of the first and second surfaces of the at least one castellated substrate.
Abstract:
A device comprising: a substrate; a semiconductor die mounted on the substrate; a transmit antenna fabricated on the substrate and configured to transmit radio-frequency (RF) signals at least at a first center frequency; a receive antenna fabricated on the substrate and configured to receive RF signals at least at a second center frequency different than the first center frequency; and circuitry integrated with the semiconductor die and configured to provide RF signals to the transmit antenna and to receive RF signals from the receive antenna.
Abstract:
Radarsensor (10) für Kraftfahrzeuge, mit einer Sendeantenne (14) und einer getrennt von der Sendeantenne (14) ausgebildeten Empfangsantenne (16), dadurch gekennzeichnet, dass die Sendeantenne (14) zur Emission von in einer ersten Richtung zirkulär polarisierter Strahlung konfiguriert ist und die Empfangsantenne (16) zum Empfang von Strahlung konfiguriert ist, die in einer der ersten Richtung entgegengesetzten zweiten Richtung zirkulär polarisiert ist.
Abstract:
An antenna system includes an electromagnetic radiator assembled on a ground plane. The ground plane containing a nontransparent area in a center of the ground plane and a semitransparent area surrounding the nontransparent area. The nontransparent area is circular in shape. The semitransparent area is generally circular in shape and contains at least one slot. A plurality of vertical conducting elements are in proximity of a boundary between the nontransparent area and the semitransparent area on a bottom side of the ground plane. The vertical conducting elements are arranged in a circle around a center of the electromagnetic radiator.
Abstract:
A patch antenna (18) includes a dielectric substrate (32) having a body (38) that extends a thickness (T) from a first side (40) to a second side (42) that is opposite the first side. The body of the substrate has a perimeter (50) that is defined by at least one side wall (44) that extends along the thickness of the substrate from the first side to the second side. The body of the substrate has a dielectric constant that is greater than air. The patch antenna also includes a radiating patch (34) positioned on the first side of the body of the substrate, a ground plane (16) positioned on the second side of the body of the substrate, and at least three feed probes (36) electromagnetically coupled to the radiating patch such that the patch antenna is configured to generate a circularly polarized radiation pattern. The feed probes are positioned relative to the body of the substrate such that adjacent feed probes are spaced apart from each other along the body. The feed probes are configured to feed the radiating patch at at least three points with approximately equal power amplitude. In an alternate embodiment, the body of the substrate includes thru openings (52) that extend through the thickness of the body and the radiating patch includes holes (54) that are aligned with corresponding thru openings of the body of the substrate. In this embodiment, each feed probe includes a conductive path (58) that extends within a corresponding thru opening of the body of the substrate from the second side of the body to the first side of the body, each conductive path being exposed along the first side of the body via the holes of the radiating patch.
Abstract:
A patch antenna (600) includes a capacitive radiating patch (604), a ground plane (502), and vertical coupling elements (630) electrically connected to defined portions of the capacitive radiating patch and the ground plane. The capacitive radiating patch includes an array of conductive segments (660, 662, 664, 666, 670) along the periphery and within the interior of the capacitive radiating patch. Capacitors (640) are electrically connected to specific conductive segments in a defined pattern. Vertical coupling elements electrically connect specific conductive segments along the periphery of the capacitive radiating patch to the ground plane. Vertical coupling elements can be conductors or defined combinations of resistors, inductors, and capacitors. Various embodiments of the patch antenna are configured for linear polarization and circular polarization.
Abstract:
A circularly polarized patch antenna array, method of forming same, and kit includes a conductive backplane, a first plurality of patch antenna radiators disposed on the conductive backplane, and a first stripline including an input at a first feed point in the conductive backplane, and a respective output at each of the first plurality of patch antenna radiators.
Abstract:
A Global Positioning System (GPS), Global System for Mobile Communications (GSM), wireless local area network (WLAN) antenna, including a dielectric board including a ground plane; a first antenna trace line disposed on a first portion of the dielectric board and in electrical contact with the dielectric board, the first antenna trace line including at least one first meandered trace for transmitting and receiving a WLAN radio frequency signal; a second antenna trace line disposed on a second portion of the dielectric board and in electrical contact with the dielectric board, the second antenna trace line including at least one second meandered trace for transmitting and receiving a GSM radio frequency signal; a GPS antenna for receiving radio frequency signals from at least one global positioning satellite; and a vehicle mountable housing for enclosing the dielectric board, the first antenna trace line, the second antenna trace line, and the GPS antenna.