Broadband antenna apparatus

• US 20050156791A1
• Filed: 03/15/2005
• Published: 07/21/2005
• Est. Priority Date: 04/12/2002
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Yamaura, Tomoya, Kuroda, Shinichi, Asai, Hisato
• Granted Patent: US 7,088,292 B2
• Time in Patent Office: Days
• US Class Current: 343/700.MS
• CPC Class Codes: H01Q 1/38 formed by a conductive layer on an insulating support patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface H01Q15/142
• CPC Class Codes: H01Q 9/40 Element having extended radiating surface
• CPC Class Codes: H01Q 9/42 with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Abstract

A broadband antenna apparatus includes a conducting ground plate, on which a three-dimensional member rests. A radiating conductor is stuck or printed on the three-dimensional member in such a manner that at least part of the radiating conductor is opposite to at least part of the ground plate. A wavelength shortening effect is achieved by the interposition of the three-dimensional member between the opposite parts of ground plate 1 and radiating conductor. This effect makes the broadband antenna apparatus smaller and lower in structure.

Claims

1. A broadband antenna apparatus comprising:

a conducting ground plate;

a three-dimensional member resting on the conducting ground plate; and

a radiating conductor stuck or printed on the three-dimensional member and connected to the conducting ground plate by a feeder line for transmitting electric power;

the radiating conductor and the conducting ground plate being opposite at least partially to each other.