# US 7,746,277 B2 · Plane super wide band coupling antenna

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- Number: US 7,746,277 B2
- Document ID: US7746277B2
- Status: Granted
- Kind: B2
- Application number: 12/054,386
- Filed: 2008-03-25
- Published: 2009-10-01
- Granted: 2010-06-29
- Earliest claimed: 2008-03-25
- Assignees: Joinsoon Electronic Mfg Co. Ltd.
- Inventors: Ching-Hsiung Huang; Ming-Han Perng; Chung-Ming Lin; Chia-Cheng Lo; Ming-Lai Chen
- Web page: https://patentgrep.com/patent/US7746277B2

## CPC

- 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)}
- H01Q 9/40: Element having extended radiating surface
- H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72)

## Abstract

A plane super wide band coupling antenna comprises an isolating substrate for installing with a metal thin film layer by printing; a first radiating portion being a metal thin film layer printed upon the isolating substrate; the first radiating portion having a coupling section and being extended with a feeding point; a second radiating portion being a metal thin film layer printed upon the isolating substrate; the second radiating portion extending from a ground portion on the isolating substrate and being a bended structure; the second radiating portion being formed with gaps with the first radiating portion; the ground portion being formed by a metal thin film layer; one end thereof being electrically connected to the second radiating portion; a signal feeding wire being a coaxial cable; and the main signal wire of the signal feeding wire being electrically connected to the feeding point of the first radiating portion.

## Claims

### Claim 1

A plane super wide band coupling antenna comprising:
an isolating substrate (10) for installing with a metal thin film layer by printing;
a first radiating portion (20) being a metal thin film layer printed upon the isolating substrate (10); the first radiating portion (10) having an approximate L shape formed by two approximate rectangular sheets which are approximately vertical to one another; one side of one of the rectangular sheet of the first radiating portion (20) being formed as a coupling section (21); the coupling section (21) being energy-coupled to a second radiating portion (30); the first radiating portion (20) being extended with a feeding point (22) which is electrically connected to a signal feeding wire (50);
the second radiating portion (30) being a metal thin film layer printed upon the isolating substrate (10); extending from a ground portion (40) on the isolating substrate (10) and having an approximate L shape, one first section of the L shape being an approximate rectangular shape; the first section of the second radiating portion (30) being formed as a free end; gaps between the two sheets of the first radiating portion (20) and two sides of the free end (31) of the second radiating portion (30) being formed as an L shape space; the gaps being formed as the coupling section between the first and second radiating portions for electric isolation so as to have an optimum frequency response for energy induction;
the ground portion (40) being formed by a metal thin film layer which is an electric conductor; one end thereof being electrically connected to the second radiating portion; the ground portion having the same potential as an grounding end of a main signal wire;
the signal feeding wire (50) being a coaxial cable; the main signal wire (51) of the signal feeding wire (50) being electrically connected to the feeding point of the first radiating portion; a grounding wire (52) of the signal feeding wire being electrically connected to the ground portion for transferring signals to a signal receiving/transmitting circuit.

### Claim 2 (depends on 1)

The plane super wide band coupling antenna as claimed in claim 1, wherein a length from the feeding point of the first radiating portion to a free end of the first radiating portion is one fourth (¼) of a wavelength of the frequency response.

### Claim 3 (depends on 1)

The plane super wide band coupling antenna as claimed in claim 1, wherein the radiation frequency band of the first radiating portion is 2.0 GHz.

### Claim 4 (depends on 1)

The plane super wide band coupling antenna as claimed in claim 1, wherein a length of the second radiating portion is one fourth (¼) of a wavelength of the frequency response.

### Claim 5 (depends on 1)

The plane super wide band coupling antenna as claimed in claim 1, wherein the radiation frequency band of the second radiating portion is 6.0 GHz.