Slot Antenna Weitere Artikel dieser Ausgabe durch Wischen aufrufen
Many translated example sentences containing "slot antenna" – German-English dictionary and search engine for German translations. Englisch-Deutsch-Übersetzungen für slot antenna im Online-Wörterbuch xc-cupen.se (Deutschwörterbuch). Übersetzung im Kontext von „slot antenna“ in Englisch-Deutsch von Reverso Context: Card-type radio receiver having slot antenna integrated with housing. Übersetzung im Kontext von „a slot antenna“ in Englisch-Deutsch von Reverso Context: Metal-encapsulated switching installation according to one of Claims 1. Übersetzung für "slot antenna" im Englisch-Deutsch Wörterbuch dictindustry - mit Forum und Beispielen.
Übersetzung im Kontext von „slot antenna“ in Englisch-Deutsch von Reverso Context: Card-type radio receiver having slot antenna integrated with housing. Übersetzung im Kontext von „a slot antenna“ in Englisch-Deutsch von Reverso Context: Metal-encapsulated switching installation according to one of Claims 1. Hier die Übersetzung Englisch ↔ Deutsch für slot antenna nachschlagen! Kostenfreier Vokabeltrainer, Konjugationstabellen, Aussprachefunktion.
Slot Antenna VideoSlot Antenna
Slot Antenna VideoSlot antenna parabolic dish based 2m 440 Schlitzgruppenantenne f. This model Slot Video Gratis illustrates applications of this type that would nominally be built using the following products:. Griechisch Wörterbücher. JoSS — Sie möchten Zugang zu diesem Inhalt erhalten? Erweiterte Suche.
Slot Antenna - Weitere Kapitel dieses Buchs durch Wischen aufrufenEnglisch Wörterbücher. Bitte versuchen Sie es erneut. Mit der weiteren Nutzung unserer Website erklären Sie sich mit der Verwendung von Cookies einverstanden. Diese Beispiele können umgangssprachliche Wörter, die auf der Grundlage Ihrer Suchergebnis enthalten. Niederländisch Wörterbücher. Verlag Springer International Publishing. OK Mehr erfahren. Furthermore, this Portugal Tipps may also be defined and modeled using components from the following product combinations:. The impedance matching bandwidth of the antenna is from 3. Sprachausgabe: Hier kostenlos testen! Dänisch Wörterbücher. A printed antenna according Bedava Book Of Ra Novoline Oyna claim 1, further comprising a slot antenna element formed in said grounded conductor layer 18 spaced apart from said window and arranged perpendicular to said transmission line for generating a circularly polarized wave. Genau: Publikationsdatum Slowenisch Wörterbücher.
The impedance is dependent on the feeding point, as in a dipole. A shift of the feed point from the center to the edge steadily decreases the impedance.
The application of slot antennas can be versatile. They can replace dipoles e. If a dipole is used for feeding of a parabolic antenna to generate a vertically orientated but horizontally polarized fan beam , then this dipole must be orientated horizontally.
This would mean that the edge surfaces of the parabolic reflector will not be sufficiently illuminated, but a lot of energy above and below the reflector would be lost.
In addition, the length of the dipole is extended in a plane, in which is demanding a point like source of radiation for the focus of the parabolic reflector.
If this dipole is replaced by a slot antenna, in this case don't appear these disadvantages. Slot antennas in waveguides provide an economical way of the design of antenna arrays.
The position, shape and orientation of the slots will determine how or if they radiate. If slots are cut into the walls, so the current flow is affected more or less depending on the location of the slot.
If the slots are sufficiently narrow so the slots B and C Fig. These two slots radiate not or very little.
The slots A and D represent barriers to the current flow. Thus, this current flow acts as an excitation system for the slot, this one acts as radiator.
Since the wave in the waveguide moves forward, these drawn lines migrate in the direction of propagation. The slot gets one always alternating voltage potential at its slot edges depending on the frequency in the waveguide.
The power that the slot radiates can be altered by moving the slots closer or farther from the edge. In order to reduce this coupling, for example the slot A could be moved closer to one of the shorter waveguide walls.
Rotating of the slots would have a the same effect an angle between the orientations of A and B or C and D.
Figure 4: Basic geometry of a slotted waveguide antenna The slot radiators are on the wider wall of the rectangular waveguide.
Several slot radiators in a waveguide form a group antenna. The waveguide is used as the transmission line to feed the elements. In order for radiate in the correct phase, all single slots must be cutted in the distance of the wavelength, that is valid for the interior of the waveguide.
This wavelength differs from the wavelength in free space and is a function of the wider side a of a rectangular waveguide.
The slot is 58mm long in the y-direction and 3 mm high in the z-direction. The monopole is also S11 is measured for this antenna relative to a 50 Ohm source , and is plotted versus frequency in Figure 2.
Figure 2. S11 as a function of Frequency for the Cavity-backed Slot Antenna. This cavity-backed slot antenna has a first resonance at about 2.
At this frequency, the cavity backed slot antenna is roughly 0. S11 drops to below dB at this frequency, indicating that most of the power is radiated away.
The bandwidth , measured somewhat arbitrarily as the frequency span that S11 is less than -6 dB is roughly from 2. Note that two other dips 'resonances' in the S11 curve occur, at approximately 3 GHz and 4.
At these frequencies, the slot length is 0. The volume of the cavity typically influences the bandwidth - a larger volume often yields a higher bandwidth.
The material within the cavity so far I have assumed it was filled with air , can be replaced with a dielectric medium. This reduces the resonant length of slot, allowing for a smaller antenna.
The tradeoff is that the bandwidth and efficiency typically decrease with a dielectric cavity medium. The radiation pattern at 2. The H-plane xy plane is shown on the in Figure 3, and the E-plane xz plane is shown in Figure 4.
Figure 3. H-plane xy plane. Angle measured off x-axis towards y-axis. Figure 4. E-plane xz plane. Angle measured off z-axis to x-axis.
The radiation pattern of the cavity backed slot antenna somewhat resembles that of a dipole antena in the forward H-plane. The 3-dB beamwidth is roughly 60 degrees in this plane.
The radiation pattern is diminished in the rear H-plane, with a significant back lobe about 6 dB down from the peak of the main beam.