DUAL-BAND ANTENNA Russian patent published in 2002 - IPC

FIELD: antennas for communication with mobile objects. SUBSTANCE: antenna has simple and compact structure; it incorporates inductance coils and first and second pin-shaped radiating members connected to opposite ends of inductance coil; insulating material encloses both inductance coil and connecting elements of first and second radiating members at respective ends of inductance coil. Conducting supporting case is placed around insulator and functions to support inductance coil and connecting elements of first and second radiating members. Case and insulator form capacitor so as to organize resonance-tuned LC circuit together with inductance coil. LC circuit is designed so that only one radiating member operates in higher-frequency band of dual-band operating frequency range while both radiating elements are radiating in lower-frequency band. EFFECT: simplified and compact design, enhanced efficiency and enlarged passband. 17 cl, 5 dwg