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Antenna structure used in portable radio device 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H01Q-001/24
출원번호 US-0742076 (1991-08-07)
우선권정보 JP-0168175 (1988-07-05)
발명자 / 주소
  • Oda Takashi (Tokyo JPX)
출원인 / 주소
  • NEC Corporation (Tokyo JPX 03)
인용정보 피인용 횟수 : 89  인용 특허 : 0

초록 ▼

An antenna structure comprises a loop antenna electrically connected to a high-frequency circuit of a portable radio device. The antenna structure also comprises a supplemental antenna including a coil spring which is used for fixing a dry battery powering the portable radio device, and a negative c

대표청구항 ▼

An antenna structure used in a portable radio device, comprising: battery means for supplying power to said radio device, said battery means having a negative terminal and a cylindrical conductor electrically connected to said negative terminal; loop antenna means, one end of which is connected to a

이 특허를 인용한 특허 (89)

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