Small size antenna for broad-band ultra high frequency

Details Small size antenna for broad-band ultra high frequency Small size antenna for broad-band ultra high frequency

1988-05-04

1989-05-09

LaRoche, Eugene R.

Communications: radio wave antennas

Antennas

Active sleeve surrounds feed line

343791, 343864, H01Q 916

Patent

active

048293164

ABSTRACT:
A small size broad-band ultra high frequency antenna including a dielectric substance in the sleeve of an antenna body whereby approximating resonance frequency of the sleeve portion to resonance frequency of the body of the antenna so that a double-tuning circuit is formed thereby causing the impedance characteristics of the antenna to have double-peak characteristics within the working frequency band. The antenna further includes an impedance matching transformer for matching the impedance of the antenna to the characteristic impedance of a feeder line connected to the antenna, the matching transformer being composed of a coaxial type impedance transducer which has an opposite reactance component sufficient to offset the reactance component of the antenna and has the characteristic impedance convertible to the feeder line impedance.

REFERENCES:
patent: 2239724 (1941-04-01), Lindenblad
patent: 2492404 (1949-12-01), Streib et al.
patent: 3576578 (1971-04-01), Harper
patent: 3656167 (1972-04-01), Lea
patent: 4180819 (1979-12-01), Nakano
patent: 4496953 (1985-01-01), Spinks, Jr. et al.
patent: 4504834 (1985-03-01), Garay et al.
patent: 4509056 (1985-04-01), Ploussions
patent: 4583589 (1986-04-01), Kasevich
patent: 4658260 (1987-04-01), Myer
patent: 4673949 (1987-06-01), Sheriff
patent: 4730195 (1988-03-01), Philips et al.

Affiliated with

Also associated with

Rating

Small size antenna for broad-band ultra high frequency does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Small size antenna for broad-band ultra high frequency, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Small size antenna for broad-band ultra high frequency will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-92107