ANTENNA DEVICE, COMMUNICATION DEVICE, AND IMAGING SYSTEM

• Main Authors: YUKIMASA, Koji, KITAZAWA, Yuki, ITSUJI, Takeaki, KOYAMA, Yasushi, MURAO, Tatsuya, SATO, Takahiro
• Format: Patent
• Language: English; French; Japanese
• Published: 19.10.2023
• Subjects: ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; BASIC ELECTRONIC CIRCUITRY; ELECTRICITY; GENERATION OF NOISE BY SUCH CIRCUITS; GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING,BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN ANON-SWITCHING MANNER

This antenna device comprises, on a semiconductor substrate: a first active antenna which includes a first antenna for transmitting or receiving a first electromagnetic wave of a first frequency, and a first negative resistance element; an oscillation unit which includes a second negative resistance...