High-impedance line and detecting system having the same

• US 8,542,082 B2
• Filed: 05/19/2010
• Issued: 09/24/2013
• Est. Priority Date: 10/30/2009
• Status: Active Grant

• Current Assignee: Hon Hai Precision Industry Co., Ltd., Tsinghua University
• Original Assignee: Hon Hai Precision Industry Co., Ltd., Tsinghua University
• Inventors: Gao, Xu, Zhang, Zhi-Jun, Feng, Zheng-He, Marcher, Steven-Philip, Li, Zhan, Yan, Yong
• Primary Examiner(s): Takaoka, Dean O
• Assistant Examiner(s): Wong, Alan
• Application Number:
  US12/782,822
• Publication Number:
  US 20110102113A1
• Time in Patent Office: 1,224 Days
• Field of Search: 333/236, 333/237, 333/24.R, 333/238, 333/245, 333/246
• US Class Current: 333/245
• CPC Class Codes: H01P 3/00 Waveguides; Transmission lines of the waveguide type

Abstract

A high-impedance line includes a plurality of windings successively arranged. Each of the windings includes an upper portion and a lower portion parallel to the upper portion. The upper portions of each of the windings are electrically connected to the lower portions of adjacent windings. A resistance unit electrically connected between every two adjacent windings.

Claims

1. A high-impedance line, comprising:

a plurality of windings successively arranged, each of the windings comprising an upper portion and a lower portion parallel to the upper portion;

the upper portions of each of the windings being electrically connected to the lower portions of adjacent windings; and

a plurality of resistance units, each of the plurality of resistance units being electrically connected between two adjacent windings.

2. The line as claimed in claim 1, wherein a length of each of the upper portions is less than or equal to 10 millimeters, and a length of each of the lower portions is less than or equal to 10 millimeters.

3. The line as claimed in claim 1, wherein a diameter of each of the upper portions is less than or equal to 0.2 millimeters, and a diameter of each of the lower portions is less than or equal to 0.2 millimeters.

4. The line as claimed in claim 1, wherein in each of the windings, a distance between the upper portion and the lower portion is less than or equal to 2 millimeters.

5. The line as claimed in claim 1, wherein the upper portions are substantially collinear, and the lower portions are substantially collinear.

6. The line as claimed in claim 1, further comprising a first connective portion electrically connected between every two adjacent windings.

7. The line as claimed in claim 6, wherein in each two adjacent windings, two adjacent upper portion and lower portion are connected with one resistance unit, and the other two adjacent upper portion and lower portion are connected with one connective portion.

8. The line as claimed in claim 1, wherein a resistance of each of the plurality of resistance units is greater than 500 ohms.

9. The line as claimed in claim 1, wherein about half of the amount of the upper portions are electrically connected with about half of the amount of the lower portions to define a first transmission line, the other upper portions are electrically connected with the other lower portions to define a second transmission line;

in each two adjacent resistance units, one of the two adjacent resistance units is electrically connected to the first transmission line, and the other one of the two adjacent resistance units is electrically connected to the second transmission line.

10. The line as claimed in claim 9, wherein the resistance units electrically connected to the first transmission line and the resistance units electrically connected to the second transmission line are alternatively arranged.

11. The line as claimed in claim 9, wherein the number of the resistance units electrically connected to the first transmission line is equal to the number of the resistance units electrically connected to the second transmission line.

12. A high-impedance line, comprising:

a first transmission line;

a second transmission line intersected with the first transmission line to form more than two windings; and

a resistance unit electrically connected between two adjacent windings.

13. The line as claimed in claim 12, wherein a resistance of the first transmission line is substantially equal to a resistance of the second transmission line.

14. The line as claimed in claim 12, wherein one resistance unit of two adjacent resistance units is electrically connected to the first transmission line, and the other resistance unit of the two adjacent resistance units is electrically connected to the second transmission line.

15. The line as claimed in claim 12, wherein the first transmission line comprises a plurality of first portions;

a first connective portion connects two adjacent first portions;

the second transmission line comprises a plurality of second portions;

a second connective portion connects two adjacent second portions;

each of the first connective portions intersects one second connective portion.

16. A detecting system, comprising:

a signal detecting device for detecting RF signals;

a signal processing device; and

a high-impedance line electrically connected to the signal detecting device and the signal processing device, the high-impedance line comprising a plurality of windings successively arranged;

wherein each of the windings comprises a first portion and a second portion;

the first portions of two adjacent windings are electrically connected to each other via a first resistance unit;

the second portions of two adjacent windings are electrically connected to each other via a second resistance unit.