Microwave and millimeter wave circuit apparatus
AssigneeNEC Corporation
InventorsKeiichi Ohata, Kenichi Maruhashi, Masaharu Ito
Life of this patent
Estimating the term…
Abstract
The present invention provides a microwave and millimeter wave circuit apparatus having a reduced size and which can be produced easily, improving productivity. The microwave and millimeter wave circuit apparatus includes: a grounding conductive layer 4 grounded; a first dielectric layer 5 formed on this grounding conductive layer 4; a signal line selectively formed on this first dielectric layer 5; a second dielectric layer 7 covering at least a portion of the signal line 6; a cavity 2 formed in this second dielectric layer 7 and extending to the signal line 6; a monolithic microwave integrated circuit 1 arranged in the cavity 2 and connected to the signal line 6; and an antenna connected to the signal line 6.
Claims19
A microwave and millimeter wave circuit apparatus comprising:
- a grounding conductive layer grounded;
- a first dielectric layer formed on the grounding conductive layer;
- a signal line formed selectively on the first dielectric layer;
- a second dielectric layer coveting at least a part of the signal line;
- a cavity formed in the second dielectric layer and extending to the signal line;
- a monolithic microwave integrated circuit arranged in the cavity and connected to the signal line;
- and
- an antenna connected to the signal line.
A microwave and millimeter wave circuit apparatus comprising:
- a grounding conductive layer grounded;
- a first dielectric layer formed on the grounding conductive layer;
- a signal line formed selectively on the first dielectric layer;
- a second dielectric layer covering at least a part of the signal line;
- a cavity formed in the second dielectric layer and extending to the signal line;
- a monolithic microwave integrated circuit arranged in the cavity and connected to the signal line;
- and
- an antenna connected to the signal line,
- the apparatus further comprising two second grounding conductive layers formed so as to sandwich the signal line on the first dielectric layer and grounded,
- wherein the signal line and the two grounding conductive layers constitute a coplanar line.
A microwave and millimeter wave circuit apparatus comprising:
- a grounding conductive layer grounded;
- a first dielectric layer formed on the grounding conductive layer;
- a signal line formed selectively on the first dielectric layer;
- a second dielectric layer covering at least a part of the signal line;
- a cavity formed in the second dielectric layer and extending to the signal line;
- a monolithic microwave integrated circuit arranged in the cavity and connected to the signal line;
- and
- an antenna connected to the signal line,
- wherein further a groove is formed in the first dielectric layer, and the first dielectric layer in the region of the groove has a thickness smaller than a value obtained from equation c/(4f·(∈r1−1)½) wherein ∈r1 is a is a relative dielectric constant of the first dielectric layer, f is the maximum frequency of the signal propagating in the signal line, and c is the light velocity.
A microwave and millimeter wave circuit apparatus comprising:
- a grounding conductive layer grounded;
- a first dielectric layer formed on the grounding conductive layer;
- a signal line formed selectively on the first dielectric layer;
- a second dielectric layer covering at least a part of the signal line;
- a cavity formed in the second dielectric layer and extending to the signal line;
- a monolithic microwave integrated circuit arranged in the cavity and connected to the signal line;
- and
- an antenna connected to the signal line,
- wherein further a second groove is formed in the second dielectric layer, and the second dielectric layer in the region of the second groove has a thickness smaller than a value obtained from equation c/(4f·(∈r1−1)½) wherein ∈r1 is a relative dielectric constant of the second dielectric layer, f is the maximum frequency of the signal propagating in the signal line, and c is the light velocity.
Dependencies are inferred from the claim text.