Wave transmission lines and networks – Resonators
Reexamination Certificate
2008-05-27
2008-05-27
Ham, Seungsook (Department: 2817)
Wave transmission lines and networks
Resonators
C333S219100, C331S096000, C331S1070DP
Reexamination Certificate
active
10546587
ABSTRACT:
An oscillator comprising a dielectric resonator (DR) has a high controllability and reproducibility of coupling between the dielectric resonator (DR) and an oscillation circuit, and an integrated circuit is reduced in size. The dielectric resonator (DR) (1) is composed of a dielectric substrate (2), grounding conductive layers (3a,3b) formed on both sides of the dielectric substrate (2), and via holes (4a) for electrical connection between the conductive layers. A coupling element (7a) composed of a slot (5a) provided in the central portion of the grounding conductive layer (3a) and a patch (6a) surrounded by the slot (5a) is coupled to the dielectric resonator (DR) (1). The patch (6a) is connected to a transmission line (13a) on an oscillation circuit (9) through a bump (8). The transmission line (13a) is connected to the ground through a termination resistor (15a). On the oscillation circuit MMIC (9), the transmission line (13a) is connected to the gate of a transistor FET (14) A capacitive transmission line (13a) for positive feedback is connected to the transistor FET (14). The output of the transistor FET (14) is connected to a transmission line (13c) for output through a matching circuit (16). The transmission line (13c) is bump-connected to a coplanar line (12a) composed of a signal conductive layer (11a) formed on an edge of the dielectric resonator (DR) (1) and the grounding conductive layer (3a).
REFERENCES:
patent: 4565979 (1986-01-01), Fiedziuszko
patent: 4716387 (1987-12-01), Igarashi
patent: 5208561 (1993-05-01), Delestre et al.
patent: 6204739 (2001-03-01), Sakamoto et al.
patent: 6356172 (2002-03-01), Koivisto et al.
patent: 2000114828 (2000-04-01), None
Ito et al., “A 60-GHz-Band Planar Dielectric Waeguide Filter for Flip-Chip Modules”, IEEE Trans. on Microwave Theory & Techniques, vol. 49, No. 12, Dec. 2001, pp. 2431-2436.
Ito et al., “60-GHz-band Dielectric Waveguide Filters with Cross-coupling for Flip-chip Modules”, Microwave Symposium Digest, 2002 IEEE MTT-S International, vol. 3, Jun. 2-7, 2002, pp. 1789-1792.
Ito Masaharu
Kishimoto Shuya
Maruhashi Kenichi
Ohata Keiichi
Ham Seungsook
NEC Corporation
Sughrue & Mion, PLLC
LandOfFree
Dielectric resonator, dielectric resonator frequency... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dielectric resonator, dielectric resonator frequency..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dielectric resonator, dielectric resonator frequency... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3955761