摘要:
An improved antenna device is provided which is easy to be made compact in size and easy to deflect a beam at a high speed. Further, a transmitting/receiving apparatus using the improved antenna device is provided which is capable of performing a detection within a large range. In particular, a primary radiator and a first transmission line combined with the primary radiator are provided on a movable section, a second transmission line electromagnetically combined with the first transmission line and a dielectric lens with a position of said primary radiator serving as a generally focal point surface are provided on a fixed section. Further, a structure is provided capable of deflecting the beam by displacing the movable section. Also, means is provided to detect the position of the movable section and a control means is provided for displacing the movable section in accordance with a position designating signal of the movable section.
摘要:
A dielectric waveguide designed to avoid the influence of reflection of electromagnetic waves at connected portions of dielectric strips (1, 2) and to have an improved characteristic. The distance L between connection planes between pairs of dielectric strips (1, 2) adjacent in the direction of propagation of an electromagnetic wave is set to an odd number multiple of 1/4 of the guide wavelength. Reflected waves are thereby superposed in phase opposition to each other to cancel out. In this manner, propagation of a reflected signal to ports is limited.
摘要:
A dielectric waveguide designed to avoid the influence of reflection of electromagnetic waves at connected portions of dielectric strips (1,2) and to have an improved characteristic, comprising dielectric waveguides each having a dielectric strip (1,2) placed between two conductor plates (4a,5a,4b,5b), wherein, in the opposed end surfaces of the pairs of conductor plates at the connection between two dielectric waveguides, a portion (p) of each of the conductor plates (4a,5a) on one side projects while the conductor plates (4b,5b) on the other side are recessed.
摘要:
A dielectric waveguide designed to avoid the influence of reflection of electromagnetic waves at connected portions of dielectric strips (1,2) and to have an improved characteristic, comprising dielectric waveguides each having a dielectric strip (1,2) placed between two conductor plates (4a,5a,4b,5b), wherein, in the opposed end surfaces of the pairs of conductor plates at the connection between two dielectric waveguides, a portion (p) of each of the conductor plates (4a,5a) on one side projects while the conductor plates (4b,5b) on the other side are recessed.
摘要:
An improved antenna device is provided which is easy to be made compact in size and easy to deflect a beam at a high speed. Further, a transmitting/receiving apparatus using the improved antenna device is provided which is capable of performing a detection within a large range. In particular, a primary radiator and a first transmission line combined with the primary radiator are provided on a movable section, a second transmission line electromagnetically combined with the first transmission line and a dielectric lens with a position of said primary radiator serving as a generally focal point surface are provided on a fixed section. Further, a structure is provided capable of deflecting the beam by displacing the movable section. Also, means is provided to detect the position of the movable section and a control means is provided for displacing the movable section in accordance with a position designating signal of the movable section.
摘要:
A dielectric waveguide designed to avoid the influence of reflection of electromagnetic waves at connected portions of dielectric strips (1, 2) and to have an improved characteristic. The distance L between connection planes between pairs of dielectric strips (1, 2) adjacent in the direction of propagation of an electromagnetic wave is set to an odd number multiple of 1/4 of the guide wavelength. Reflected waves are thereby superposed in phase opposition to each other to cancel out. In this manner, propagation of a reflected signal to ports is limited.