Moving object mounted radar antenna, module for moving object mounted radar antenna, and moving object mounted radar antenna system

A module, comprising:

• a transmission unit configured to transmit a transmission wave to an object, wherein
• the module is configured to process a signal from a moving object mounted radar antenna, and
• the moving object mounted radar antenna includes:
• an antenna substrate including a main flat surface that faces the object,
• a first antenna element configured to receive a polarization component in a first polarization direction parallel to the main flat surface,
• a second antenna element configured to receive a polarization component in a second polarization direction perpendicular to the main flat surface;
• and
• a separation portion configured to electrically separate the first antenna element and the second antenna element, wherein the first antenna element, the second antenna element, and the separation portion are on the antenna substrate;
• a first reception unit configured to receive a first polarization component in the first polarization direction of a reflected wave via the first antenna element, wherein the reflected wave is received from the object;
• a second reception unit configured to receive a second polarization component in the second polarization direction of the reflected wave via the second antenna element;
• and
• a signal processing unit configured to process a signal for each of the first polarization component and the second polarization component.

A moving object mounted radar antenna system, comprising:

• a moving object mounted radar antenna including:
• an antenna substrate including a main flat surface that faces an object;
• a first antenna element configured to receive a polarization component in a first polarization direction parallel to the main flat surface;
• a second antenna element configured to receive a polarization component in a second polarization direction perpendicular to the main flat surface;
• and
• a separation portion configured to electrically separate the first antenna element and the second antenna element, wherein the first antenna element, the second antenna element, and the separation portion are on the antenna substrate;
• and
• a module including:
• a transmission unit configured to transmit a transmission wave to the object;
• a first reception unit configured to receive a first polarization component in the first polarization direction of a reflected wave via the first antenna element, wherein the reflected wave is received from the object;
• a second reception unit configured to receive a second polarization component in the second polarization direction of the reflected wave via the second antenna element;
• and
• a signal processing unit configured to process a signal for each of the first polarization component and the second polarization component.