VEHICULAR ANTENNA
First Claim
1. A vehicular antenna comprising:
- a transmitting antenna element that transmits a radio wave, which is also referred to as a transmission wave;
a receiving antenna element that receives a radio wave, which is also referred to as a receiving wave;
a coupling portion that electromagnetically couples a transmitting line through which the transmission wave passes with a receiving line through which the receiving wave passes, the transmitting line coupling the transmitting antenna element to a transmitter and the receiving line coupling the receiving antenna element to a receiver; and
an adjusting portion that adjusts, within the coupling portion, a mutual coupling amount between the transmission wave in the transmitting line and the receiving wave in the receiving line, the adjusting portion further adjusting a phase of the transmission wave to be coupled with the receiving wave by the coupling portion.
1 Assignment
0 Petitions
Accused Products
Abstract
A vehicular antenna includes a transmitting antenna element, a receiving antenna element, a coupling portion, and an adjusting portion. The transmitting antenna element transmits a radio wave as a transmission wave. The receiving antenna element receives a radio wave as a receiving wave. The coupling portion electromagnetically couples a transmitting line through which the transmission wave passes with a receiving line through which the receiving wave passes. The adjusting portion adjusts, within the coupling portion, a mutual coupling amount between the transmission wave in the transmitting line and the receiving wave in the receiving line. The adjusting portion further adjusts a phase of the transmission wave to be coupled with the receiving wave by the coupling portion.
6 Citations
3 Claims
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1. A vehicular antenna comprising:
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a transmitting antenna element that transmits a radio wave, which is also referred to as a transmission wave; a receiving antenna element that receives a radio wave, which is also referred to as a receiving wave; a coupling portion that electromagnetically couples a transmitting line through which the transmission wave passes with a receiving line through which the receiving wave passes, the transmitting line coupling the transmitting antenna element to a transmitter and the receiving line coupling the receiving antenna element to a receiver; and an adjusting portion that adjusts, within the coupling portion, a mutual coupling amount between the transmission wave in the transmitting line and the receiving wave in the receiving line, the adjusting portion further adjusting a phase of the transmission wave to be coupled with the receiving wave by the coupling portion. - View Dependent Claims (2, 3)
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Specification