TW200618385A - Miniaturized multi-layer balun - Google Patents
Miniaturized multi-layer balunInfo
- Publication number
- TW200618385A TW200618385A TW093135109A TW93135109A TW200618385A TW 200618385 A TW200618385 A TW 200618385A TW 093135109 A TW093135109 A TW 093135109A TW 93135109 A TW93135109 A TW 93135109A TW 200618385 A TW200618385 A TW 200618385A
- Authority
- TW
- Taiwan
- Prior art keywords
- balun
- coupled lines
- layer
- pair
- section
- Prior art date
Links
Landscapes
- Coils Or Transformers For Communication (AREA)
Abstract
A miniaturized multi-layer balun includes a pair of capacitive elements, at least one section of broadside coupled lines connected in series to a unbalanced and two balanced ports through a pair of transmission lines. Each section has first and second coupled lines. A ground connection is located between two central second coupled lines, and connected to a ground. By means of a multi-layer structure and the addition of a ground connection, the balun of the invention can be fabricated with five conductor layers. This not only greatly decreases the size of the balun device, but also enhances the stability of the device. From the measured return loss and differences in magnitude and phase to the frequency, response, it shows that the balun of the invention has good impedance match.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW93135109A TWI239675B (en) | 2004-11-16 | 2004-11-16 | Miniaturized multi-layer balun |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW93135109A TWI239675B (en) | 2004-11-16 | 2004-11-16 | Miniaturized multi-layer balun |
Publications (2)
Publication Number | Publication Date |
---|---|
TWI239675B TWI239675B (en) | 2005-09-11 |
TW200618385A true TW200618385A (en) | 2006-06-01 |
Family
ID=37007512
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW93135109A TWI239675B (en) | 2004-11-16 | 2004-11-16 | Miniaturized multi-layer balun |
Country Status (1)
Country | Link |
---|---|
TW (1) | TWI239675B (en) |
-
2004
- 2004-11-16 TW TW93135109A patent/TWI239675B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
TWI239675B (en) | 2005-09-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |