Planar microstrip patch antenna for enhanced antenna efficiency and gain

• US 6,515,626 B2
• Filed: 12/21/2000
• Issued: 02/04/2003
• Est. Priority Date: 12/22/1999
• Status: Expired due to Term

• Current Assignee: Pantech Incorporated
• Original Assignee: SK Hynix Inc.
• Inventors: Kim, Dong-Sob, Yoon, Hyun-Bo, Bark, Hang-Gu
• Primary Examiner(s): Ho, Tan
• Application Number:
  US09/745,327
• Publication Number:
  US 20020008664A1
• Time in Patent Office: 775 Days
• Field of Search: 343/700.MS, 343/767, 343/770, 343/806, 343/895, 343/702
• US Class Current: 343/700.0MS
• 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 13/106 Microstrip slot antennas patch antenna elements H01Q9/0407
• CPC Class Codes: H01Q 9/0407 Substantially flat resonant element parallel to ground plane, e.g. patch antenna dipole H01Q9/285; monopole H01Q9/40
• CPC Class Codes: H01Q 9/40 Element having extended radiating surface

Abstract

A planar microstrip patch antenna of the present invention has a high antenna efficiency and gain by implementing a microstrip patch formed in a shape of a zigzag or a H-slot. The planar microstrip patch antenna includes a substrate made of a dielectric material, a microstrip patch, made of a conductive metal, formed on the substrate, a feeding conductor to electrically connect to an end of the microstrip patch, and a ground face disposed on a side of the substrate.

Claims

1. A planar microstrip antenna comprising a dielectric substrate having a conductive layer on a first surface, said conductive layer having a slot formed therein having the overall shape of an H, said slot comprises first and second substantially parallel slot portions and an interconnecting slot portion extending therebetween, wherein said substantially parallel slot portions comprise zig-zag shaped slots, and an elongated conductor formed on an opposite second surface of said dielectric substrate, wherein said conductor extends across said interconnecting slot to couple signals to said slot for radiation therefrom.

2. A planar microstrip antenna comprising a planar dielectric substrate having at least one elongated conductor on a first side thereof extending outwardly in a zig-zag configuration from an input conductor in the vicinity of a first edge of said substrate, and at least one second conductive arranged in the vicinity of said input conductor, and formed a ground plane with respect to signals on said input conductor.

3. A planar micorstrip antenna as specified claim 2 wherein said elongated conductor comprises a single conductor.

4. A planar microstrip antenna as specified in claim 3 further comprising third and fourth elongated zig-zag conductors said third and fourth zig-zag conductors being arranged on sides of said elongated conductor.

5. A planar microstrip antenna as specified in claim 2 wherein there are provided two said elongated conductors.

6. A planar antenna as specified in claim 2 further including a triangular conductive element arranged between said input conductor and said elongated conductor.