초록 ▼

Apparatus for electromagnetic radiation of living tissue, such as human tissue, or tissue simulating matter, comprises an electromagnetic radiation source having a dynamic frequency range of at least about 5 to 1, and preferably 10 to 1. Electrically connected to the source by a coaxial cable is a b

Apparatus for electromagnetic radiation of living tissue, such as human tissue, or tissue simulating matter, comprises an electromagnetic radiation source having a dynamic frequency range of at least about 5 to 1, and preferably 10 to 1. Electrically connected to the source by a coaxial cable is a broadband applicator adapted for emitting electromagnetic radiation into tissue and the like. Parallel plate type radiation launching portions of the applicator are configured to have a characteristic impedance, throughout the dynamic frequency range, approximately equal to the impedance of specimens to be irradiated, which for human tissue, between 50 MHz-2000 MHz, is approximately 50 ohms. A transition for interconnecting the coaxial cable to the parallel plate launching portion is configured to provide a relatively gradual coaxial to parallel plate transition at constant characteristic impedance throughout the dynamic frequency range. Both air filled and dielectric filled transitions and air filled, whole body and dielectric filled, partial body applicators are described.

대표청구항 ▼

Broadband electromagnetic radiation apparatus, for irradiating living tissue and tissue simulating matter, which comprises: (a) a broadband electromagnetic radiation source having an output impedance substantially equal to an average impendance of living tissue and tissue simulating matter over a se

Broadband electromagnetic radiation apparatus, for irradiating living tissue and tissue simulating matter, which comprises: (a) a broadband electromagnetic radiation source having an output impedance substantially equal to an average impendance of living tissue and tissue simulating matter over a selected dynamic frequency range of at least about 5 to 1; (b) transmission means connected to said source for transmitting electromagnetic waves therefrom, said transmission means having a characteristic impedance substantially equal to said average impedance throughout said frequency range; (c) An applicator adapted for radiating electromagnetic energy into said tissue and tissue simulating matter, said applicator including parallel plate-type launching means having a characteristic impedance, when the applicator is in operative relationship with said tissue and tissue simulating matter for irradiation thereof, substantially equal to said average impedance throughout said frequency range; and, (d) broadband transition means electrically connecting said tranmission means to said applicator for enabling substantially reflectionless transmission of electromagnetic waves from said transmission means thereto throughout said frequency range, said transition means being configured to have a charcteristic impedance substantially equal to said average impedance throughout said frequency range.