WIDEBAND RF 3D TRANSITIONS
First Claim
Patent Images
1. An apparatus, the apparatus being a radar apparatus comprising:
- an antenna substrate, having a first side and a second side;
an antenna disposed on the first side of the antenna substrate;
a transition between the first and second sides of the antenna substrate, the transition including;
a first via pad supported by the first side of the antenna substrate;
a second via pad supported by the second side of the antenna substrate; and
a transition via passing through the antenna substrate, connecting the first and second via pads; and
an antenna feed supported by the first side of the antenna substrate, the antenna feed electrically interconnecting the first via pad and at least part of the antenna,the transition via, first via pad, and second via pad being configured so that the transition is impedance matched to the antenna feed.
1 Assignment
0 Petitions
Accused Products
Abstract
Apparatus and methods according to examples of the present invention include providing an electrical interconnection between an RF circuit and an antenna, the electrical interconnection including a transition via through an antenna substrate. The electrical connection can be configured so as to provide low losses.
-
Citations
28 Claims
-
1. An apparatus, the apparatus being a radar apparatus comprising:
-
an antenna substrate, having a first side and a second side; an antenna disposed on the first side of the antenna substrate; a transition between the first and second sides of the antenna substrate, the transition including; a first via pad supported by the first side of the antenna substrate; a second via pad supported by the second side of the antenna substrate; and a transition via passing through the antenna substrate, connecting the first and second via pads; and an antenna feed supported by the first side of the antenna substrate, the antenna feed electrically interconnecting the first via pad and at least part of the antenna, the transition via, first via pad, and second via pad being configured so that the transition is impedance matched to the antenna feed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. An apparatus, the apparatus being a radar apparatus comprising:
-
an antenna substrate, having a first side and a second side; an antenna disposed on the first side of the antenna substrate, an transition between the first side and the second side, the transition comprising; a first via pad supported by the first side of the antenna substrate; a second via pad supported by the second side of the antenna substrate; and a transition via passing through the antenna substrate, connecting the first and second via pads; an antenna feed supported by the first side of the antenna substrate, the antenna feed interconnecting the first via pad and at least part of the antenna; a ground region supported by the first side, partially surrounding the first via pad and being spaced apart from the first via pad by a gap; and a ground plane substantially adjacent the second side of the antenna substrate; and a plurality of shorting vias electrically interconnecting the ground region and the ground plane. - View Dependent Claims (15, 16, 17, 18, 19, 20)
-
-
21. An apparatus, the apparatus being a radar apparatus comprising
an antenna substrate, having a first side and a second side; -
an antenna, comprising conducting elements supported by the first side of the antenna substrate; a radio-frequency circuit (RF circuit) substantially adjacent the second side of the antenna substrate; an electrical interconnection between the antenna and the RF circuit, the electrical interconnection including; a transition via passing through the antenna substrate and connecting a first via pad on the first side and a second via pad on the second side; an antenna feed, located on the first side of the antenna substrate and electrically interconnecting the via pad and at least part of the antenna; and a waveguide connection, located on the second side of the antenna substrate and electrically interconnecting the RF circuit and the second via pad; a ground region on the first side, the ground region having an edge extending around the first via pad and a portion of the antenna feed, the edge then extending away from the antenna feed at an oblique angle; a ground plane substantially adjacent the second side of the antenna substrate; and a plurality of shorting vias between the ground region and the ground plane, the electrical interconnection between the antenna and the RF circuit presenting a generally constant impedance so as to reduce - View Dependent Claims (22, 23, 24, 25, 26, 27, 28)
-
Specification