| 摘要 |
<p>An antenna assembly capable of narrowing the beam in the vertical direction without varying the antenna gain at the time of wide angle scanning in the horizontal direction, a wireless communication apparatus and a radar. The antenna assembly (1) comprises a dielectric lens (2), and a primary emitter (3). The dielectric lens (2) is arcuate. The primary emitter (3) can perform scanning in the circumferential direction of the dielectric lens (2) while emitting an electromagnetic beam, and the primary emitter (3) is arranged at the focal point of the dielectric lens (2) or in the vicinity thereof. Since all cross-sections of the dielectric lens (2) perpendicular to the circumferential direction are set to have an identical profile, pattern of the electromagnetic beam emitted from the dielectric lens (2), antenna gain, and the like, become identical in all scanning directions of the primary emitter (3). Since the primary emitter (3) is arranged at the focal point of the dielectric lens (2) or in the vicinity thereof, the electromagnetic beam emitted from the dielectric lens (2) is made narrow.</p> |
