TW374255B - Semi-lumped band pass filter - Google Patents
Semi-lumped band pass filterInfo
- Publication number
- TW374255B TW374255B TW087113533A TW87113533A TW374255B TW 374255 B TW374255 B TW 374255B TW 087113533 A TW087113533 A TW 087113533A TW 87113533 A TW87113533 A TW 87113533A TW 374255 B TW374255 B TW 374255B
- Authority
- TW
- Taiwan
- Prior art keywords
- filter
- lumped
- pass filter
- band pass
- semi
- Prior art date
Links
Abstract
The band pass filter of the present invention is suitable to be applied to the framework of a multi-layer ceramic circuit. This filter is a semi-lumped filter which comprises a lumped capacitor and a distributed transmission line. And the resonator used consists of a grounded transmission line node (for equalizing induction) and a great value capacitor. Thus the size of the resonator is far smaller than 1/4 of the operating wavelength and has a characteristic of impact scale. Additionally, the attenuation pole of this band pass filter can be very close to the edge of low frequency side of the pass frequency band, thus can have a suppression effect of the sharpness occurred next to the pass frequency band to make this filter suitable to be used in portable communication devices, compact applications and receiving filters in duplexers.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW087113533A TW374255B (en) | 1998-08-18 | 1998-08-18 | Semi-lumped band pass filter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW087113533A TW374255B (en) | 1998-08-18 | 1998-08-18 | Semi-lumped band pass filter |
Publications (1)
Publication Number | Publication Date |
---|---|
TW374255B true TW374255B (en) | 1999-11-11 |
Family
ID=57941830
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW087113533A TW374255B (en) | 1998-08-18 | 1998-08-18 | Semi-lumped band pass filter |
Country Status (1)
Country | Link |
---|---|
TW (1) | TW374255B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11867525B2 (en) | 2020-12-16 | 2024-01-09 | Google Llc | Sharing a navigation session to minimize driver distraction |
-
1998
- 1998-08-18 TW TW087113533A patent/TW374255B/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11867525B2 (en) | 2020-12-16 | 2024-01-09 | Google Llc | Sharing a navigation session to minimize driver distraction |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MK4A | Expiration of patent term of an invention patent |