Traveling wave array antennas

traveling wave array antennas

the Traveling - Wave Antenna Array (TWAA) as a. Multioctave Planar Phased Arrays (MPPA) capable of efficient wide scan with low cross polarization. Three.
This paper presents a simple circularly-polarized traveling - wave array antenna. It uses four identical rectangular microstrip patches which are arranged in.
Series-fed array, traveling - wave array, antennas. ABSTRACT. A method of designing a series-fed microstrip traveling-wave array to produce a shaped pattern is..

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In this traveling-wave array antenna, the energy of a transmitting signal travels along the feeder line toward its terminating portion, where a part of the energy is successively radiated so as to be transmitted in a predetermined direction. The first traveling-wave array antenna has a plurality of antenna elements provided at intervals along a first feeder line, and has a radiating directivity characteristic. From Wikipedia, the free encyclopedia.

traveling wave array antennas

This may be applied to the other preferred embodiments. As apparent from FIG. In this traveling-wave array antenna, the energy of a transmitting signal travels along the feeder line toward its terminating portion, where a part of the energy is successively radiated so as to be transmitted in a predetermined direction. Institution Name Registered Users please login: Access your saved publications, articles and searches Manage your email alerts, orders and subscriptions Change your contact information, including your password Click Here to Login Forgotten Password? Whereas the simulation results numerical analysis results of the traveling-wave array antenna apparatus according to the sixth preferred embodiment have been described above, their validity is verified through this experiment. King Best Paper award, among. In radio and telecommunicationa traveling-wave antenna is a class of antenna that use a traveling wave on a guiding structure as the main radiating mechanism. The present inventors manufactured a prototype of a traveling-wave array antenna apparatus according to the sixth preferred embodiment and performed an experiment on its electrical characteristics. In travel kanazawa japan bullet train from tokyo above-mentioned traveling-wave combining array antenna apparatus, each of the first and second traveling-wave array antennas is preferably a post-wall dielectric waveguide slot array antenna, and the attenuator device is formed by setting an interval of through holes of the post wall of the second traveling-wave array antenna so as to be larger than an interval of through holes of the first traveling-wave array antenna, traveling wave array antennas.




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  • In addition, the apparatus constitution for the experiment is the same as that shown in FIG.
  • Traveling wave array antennas
  • In the above-mentioned traveling-wave combining array antenna apparatus, each of the first and second traveling-wave array antennas is preferably a post-wall dielectric waveguide slot array antenna, and the attenuator device is formed by setting an inner diameter of each through hole of a post wall of the second traveling-wave array antenna so as to be smaller than an inner diameter of each through hole of a post wall of the first traveling-wave array antenna. Please help to improve this article by introducing more precise citations.
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In the above-mentioned traveling-wave combining array antenna apparatus, each of the first and second traveling-wave array antennas is preferably one of a waveguide slot array antenna, a dielectric waveguide slot array antenna and a post-wall dielectric waveguide slot array antenna, and the attenuator device is formed by setting a waveguide width of a waveguide of the second traveling-wave array antenna so as to be smaller than a waveguide width of a waveguide of the first traveling-wave array antenna. Although a rectangular waveguide is used in the above-mentioned preferred embodiment, transmission lines of other configurations such as circular waveguides may be also used. In the above-mentioned traveling-wave combining array antenna apparatus, each of the first and second traveling-wave array antennas is preferably one of a waveguide slot array antenna, a dielectric waveguide slot array antenna and a post-wall dielectric waveguide slot array antenna, and the splitter device and the first and second traveling-wave array antennas are formed within an identical waveguide.

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Sign in to various IEEE sites with a single account. Accordingly, it is simple to form an array antenna having the desired radiating directivity characteristic. The second traveling-wave array antenna has a plurality of antenna elements provided at intervals along a second feeder line, and has a main beam of a half-value width and a radiating directivity characteristic of a side lobe level lower than that of the first traveling-wave array antenna. As shown in FIGS. Pozar attended the University of Akron, earning both a BS and an MS in Electrical Engineering.