Ultra Thin Antenna

• US 20120249395A1
• Filed: 03/26/2012
• Published: 10/04/2012
• Est. Priority Date: 03/30/2011
• Status: Abandoned Application

• Current Assignee: Convergence Systems Limited
• Original Assignee: Convergence Systems Limited
• Inventors: LAI, Kin Yue Albert, CHAN, Yi Wan, YIU, Pik Chung, CHAN, Cheuk Kuen Kenny, CHAN, Wai Kin, YEUNG, Siu Hong, LAM, Ka Shun, GARRETT, Jerry
• Application Number:
  US13/429,543
• Publication Number:
  US 20120249395A1
• Time in Patent Office: Days
• US Class Current: 343/860
• CPC Class Codes: G06K 19/07749 the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
• CPC Class Codes: G06K 19/07786 the antenna being of the HF type, such as a dipole
• CPC Class Codes: G06K 7/10346 the antenna being of the far field type, e.g. HF types or dipoles
• CPC Class Codes: H01Q 1/2225 used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
• 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 9/0407 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

An ultra thin antenna (100, 200) is disclosed as having a rectangular path (102, 202) and at least one extender piece (104, 108, 110, 212) for extension of radio frequency (RF) energy out of the rectangular path (102, 202).

Claims

1. An ultra thin antenna with a rectangular path and at least one extender piece for extension of radio frequency (RF) energy out of the rectangular path.

2. An antenna according to claim 1, wherein the extender piece is a triangular shaped wave extender piece for extension of RF frequency out in a continuous manner along two sides of the rectangular path.

3. An antenna according to claim 1, wherein the extender piece is a flag shaped corner compensation piece for extension of RF energy out to corners of the rectangular path.

4. An antenna according to claim 1, wherein the extender piece is a rectangular corner compensation piece for extension of RF energy out to corners of the rectangular path.

5. An antenna according to claim 1, wherein the extender piece is a triangular corner compensation piece for extension of RF energy out to corners of the rectangular path.

6. An antenna according to claim 1, further including a rectangular metal sheet inline wave management tube for guiding the wave along the main rectangular path.

7. An antenna according to claim 1, further including a rectangular metal sheet corner wave management tube for guiding the wave from the main rectangular path to the corner compensation piece.

8. An antenna according to claim 1, further including a rectangular metal sheet inline wave blocking tube for blocking the wave along the main rectangular path.

9. An antenna according to claim 1, further including a matching circuit at the exciter end to match the antenna.

10. An antenna according to claim 1, further including a matching circuit at the terminator end to match the termination.

11. An antenna according to claim 10, further including a pig tail RF cable connected to the exciter end.

12. An antenna according to claim 1, further including a ground plane below the antenna.

13. An antenna according to claim 1, further including two RF inputs to the antenna, one at one end, the other at an opposite end.