Abstract:
A contactless connector (100) includes a transmitter (102) having a first transmit integrated circuit (200) generating a first signal and a second transmit integrated circuit (202) generating a second signal. A first pick-up antenna (208) is adjacent the first transmit integrated circuit and conveys the first signal along a first transmission line (204) to a first propagation antenna (220). A second pick-up antenna (212) is adjacent the second transmit integrated circuit and conveys the second signal along a second transmission line (206) to a second propagation antenna (222). The first and second propagation antennas transmit the first and second signals to a propagation path (106) at different and separable polarizations to allow duplex communication with the propagation path.
Abstract:
본 발명에 따른 레이더 디텍터용 안테나는 급전부와, 상기 급전부에서 분기되는 제1지로와 제2지로와, 상기 제1지로와 연결되는 제1밴드 대역 특성의 제1밴드 패치 안테나와, 상기 제2지로와 연결되는 제2밴드 대역 특성의 제2밴드 패치 안테나와, 상기 제1지로 상에서 상기 급전부와 상기 제1밴드 패치 안테나 사이에 구비되는 제2밴드 스터브(stub) 그리고 상기 제2지로 상에서 상기 급전부와 상기 제2밴드 패치 안테나 사이에 구비되는 제1밴드 스터브를 포함하고, 서로 다른 주파수 특성을 갖는 복수 개의 안테나의 특성을 손상하지 않으면서 하나의 급전부로 매칭할 수 있다.
Abstract:
Eine verbesserte Patchantenne zeichnet sich durch folgende Merkmale aus: an zumindest einem in Umfangsrichtung liegenden Randabschnitt (13c) und vorzugsweise an zumindest zwei und insbesondere vier in Umfangsrichtung versetzt liegenden Randabschnitten (13c) der Strahlerfläche (7) ist mindestens eine vom betreffenden Randabschnitt (13c) ausgehende Schlitzanordnung (15) vorgesehen, die Schlitzanordnung (15) weist in vom zugehörigen Randabschnitt (13c) wegweisender Schlitzrichtung (15') zumindest eine geschlossene Schlitzausnehmung (115; 115a, 115b,..., 115f) auf, und die zumindest eine geschlossene Schlitzausnehmung (115; 115a, 115b,..., 115f) ist über einen dem zugehörigen Randabschnitt (13c) zugewandt liegenden, elektrisch-leitfähigen Quer- oder Abstimmsteg (17) geschlossen.
Abstract:
Ce système d'antenne en polarisation circulaire, du type comportant des éléments rayonnants (11, 16, 17), disposés sur des moyens formant plan de masse (12), est caractérisé en ce que les éléments rayonnants comportent des antennes quart-d'ondes court-circuitées.
Abstract:
An RFID antenna for use in an RFID-EAS antenna system is disclosed. In one embodiment, the RFID antenna has a first patch antenna element and a second patch antenna element that are electrically connected and coplanar. The RFID antenna also has a reference ground plane coplanar with the patch antenna elements.
Abstract:
A micro-strip planar array antenna is disclosed, having a radiation surface (S) comprising first radiating elements (12T) arranged for operating in transmission and second radiating elements (12R) arranged for operating in reception, and a signal feeding network arranged on a plane parallel to the radiation surface (S), including micro-strip lines (120) ca- pacitively coupled to the aforementioned elements (12R, 12T). The first and second radiating elements (12R, 12T) are made on a same radiation surface (S) of the antenna according to an intercalated configuration, and are adapted to operate at different frequency ranges and perpendicular polarizations.
Abstract:
There is disclosed an antenna element, including at least one antenna patch and a feeding arrangement which comprises: a ground plane including: a first aperture slot and a second aperture slot, where said aperture slots cross each other perpendicularly; a feeding plane including: a first antenna port for feeding microwave energy via a first feeding junction into a first pair of feed lines which extend in parallel along said first aperture slot, on each side thereof; a second antenna port for feeding microwave energy via a second feeding junction into a second pair of feed lines which extend in parallel along said second aperture slot, on each side thereof; and where said feed lines cross each other in at least one point, at a mutual distance. Said feeding arrangement is furthermore irregularly configured for compensating for an imbalance caused by said crossing of said feed lines.
Abstract:
A microstrip antenna that can be linear, co-circular, or dual-circularly polarized having co-planar radiating elements and operating at dual frequency bands wherein an inner radiating element is surrounded by and spaced from an outer radiating element. Each radiating element resonates at a different frequency. In one embodiment of the invention a feed network has a single, cross-shaped, feed line that is positioned between the inner and outer radiating elements and capacitively coupled to the inner and outer radiating elements. In another embodiment of the present invention, the radiating elements are fed separately by first and second feed networks each having a plurality of feed points. The radiating elements each have one active feed point that is either directly or indirectly coupled to its respective feed network.
Abstract:
Disclosed is a micropatch antenna comprising a radiating element and a ground plane separated by an air gap. Small size, light weight, wide bandwidth, and wide directional pattern are achieved without the introduction of a high-permittivity dielectric substrate. Capacitive elements are configured along the perimeter of at least one of the radiating element and ground plane. Capacitive elements may comprise extended continuous structures or a series of localized structures. The geometry of the radiating element, ground plane, and capacitive elements may be varied to suit specific applications, such as linearly-polarized or circularly-polarized electromagnetic radiation.