Dc block structure
AssigneeNTT, Inc.
InventorsHitoshi Wakita, Munehiko Nagatani, Teruo Jo, Tsutomu Takeya, Hiroyuki Takahashi
Life of this patent
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Abstract
A DC block structure includes a dielectric (1), transmission lines (2a, 2b) having characteristic impedance of 50Ω and formed on a surface of the dielectric (1), transmission lines (3a, 3b) formed on the surface of the dielectric (1) so as to be connected with the transmission lines (2a, 2b) and designed so that characteristic impedance is higher than the characteristic impedance of the transmission lines (2a, 2b), and a capacitor (4) mounted on the transmission lines (3a, 3b) so as to connect the transmission line (3a) and the transmission line (3b) in series.
Claims14
1-8. (canceled)
A DC block structure comprising:
- a dielectric substrate;
- a first transmission line on a surface of the dielectric substrate;
- a second transmission line on the surface of the dielectric substrate and having a same characteristic impedance as the first transmission line;
- a third transmission line on the surface of the dielectric substrate, the third transmission line connected to the first transmission line and having a characteristic impedance that is higher than a characteristic impedance of the first transmission line and the second transmission line;
- a fourth transmission line on the surface of the dielectric substrate, the fourth transmission line connected to the second transmission line and having a characteristic impedance that is higher than the characteristic impedance of the first transmission line and the second transmission line;
- and
- a capacitor connecting the third transmission line and the fourth transmission line in series.
Dependencies are inferred from the claim text.