Antenna device and antenna mounting method

摘要

An antenna device (10) includes: an antenna (100) including a radiating element (101) and an internal ground (103); a coaxial cable (200) whose internal conductor (204) is connected with the radiating element (101) and whose external conductor (203) is connected with the internal ground (103); and an external ground (500) connected with the external conductor (203) of the coaxial cable (200).

主权项

1. An antenna device, comprising:
an antenna including a radiating element and an internal ground; a coaxial cable whose internal conductor is connected with the radiating element and whose external conductor is connected with the internal ground; and an external ground connected with the external conductor of the coaxial cable, wherein the antenna, which is an inverted F antenna, further includes a short-circuit section for short-circuiting the radiating element and the internal ground, wherein the radiating element includes: a first straight line section extending from a power supply section in a direction opposite to a direction in which the coaxial cable is drawn out, the power supply section being connected with the internal conductor of the coaxial cable; and a second straight line section connected via a first intermediary section with an end of the first straight line section which end is farther from the power supply section and extending from the first intermediary section in the direction in which the coaxial cable is drawn out, and wherein the short-circuit section includes: a third straight line section extending from the power supply section in the direction opposite to the direction in which the coaxial cable is drawn out; and a fourth straight line section connected via a second intermediary section with an end of the third straight line section which end is farther from the power supply section and extending from the second intermediary section in the direction in which the coaxial cable is drawn out, and an end of the fourth straight line section which end is farther from the second intermediary section is connected with the internal ground.