Wave transmission lines and networks – Coupling networks – Wave filters including long line elements
Patent
1990-08-06
1991-05-21
LaRoche, Eugene R.
Wave transmission lines and networks
Coupling networks
Wave filters including long line elements
333219, 445327, H01P 1203
Patent
active
050178970
ABSTRACT:
A bandpass filter (40) comprises a first microstrip split-ring resonator (12), having at least a first edge and a second edge, the first edge having a gap (20) therein, and an input. The bandpass filter (40) also comprises a second microstrip split-ring resonator (14), having at least a first edge and a second edge, the first edge being coupled to the second edge of the first microstrip split-ring resonator, and the second edge of the second microstrip split-ring resonator comprising a gap (26) therein and a balanced output (30, 32).
REFERENCES:
patent: 4749963 (1988-06-01), Makimoto et al.
Makimoto et al., Varactor Tuned Bandpass Filters Using Microstrip-Line Ring Resonators, IEEE MTT-S Digest (1986), at pp. 411-414.
Avanic Branko
Ooi Leng H.
Yeh Peter J.
Buchenhorner Michael J.
Ham Seung
LaRoche Eugene R.
Motorola Inc.
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