WO1996015590B1 - Electrical circuit utilizing avalanche transistor for generating and transmitting sine-wave energy pulses - Google Patents

Electrical circuit utilizing avalanche transistor for generating and transmitting sine-wave energy pulses

Info

Publication number
WO1996015590B1
WO1996015590B1 PCT/US1995/014683 US9514683W WO9615590B1 WO 1996015590 B1 WO1996015590 B1 WO 1996015590B1 US 9514683 W US9514683 W US 9514683W WO 9615590 B1 WO9615590 B1 WO 9615590B1
Authority
WO
WIPO (PCT)
Prior art keywords
transistor
reference signal
transmitting
loop path
generating
Prior art date
Application number
PCT/US1995/014683
Other languages
French (fr)
Other versions
WO1996015590A1 (en
Filing date
Publication date
Priority claimed from US08/337,045 external-priority patent/US5586145A/en
Application filed filed Critical
Priority to AU42352/96A priority Critical patent/AU4235296A/en
Publication of WO1996015590A1 publication Critical patent/WO1996015590A1/en
Publication of WO1996015590B1 publication Critical patent/WO1996015590B1/en

Links

Abstract

A method and apparatus are shown for generating and transmitting very short and widely separated high frequency sine-wave pulses of electromagnetic energy into space. A transistor (TR3), a charging capacitor (C8), and an inductor (L1) are coupled into a first series loop path to form a discharge circuit. A bias voltage source (52), the same charging capacitor (C8), and a charging resistor (R13) are coupled into a second series loop path to form a recharging circuit. The bias voltage source is selected to be capable of biasing the forward conduction path of the transistor near its breakdown condition. The transistor is intermittently triggered into its breakdown or avalanche mode, and an antenna (56) is coupled to the inductor (L1) for transmitting the energy pulses.

Claims

-C __
AMENDED CLAIMS
[received by the International Bureau on 14 May 1996 (14.05.96); original claims 17 and 18 cancelled; new claims 19-22 added; remaining claims unchanged (1 page)]
19. The method of generating and transmitting very short and widely separated high frequency sine-wave pulses of electrical energy, comprising: coupling a transistor, a charging capacitor, and a load device into a first series loop path forming a discharge circuit; coupling a bias voltage source and the same charging capacitor into a second series loop path forming a recharging circuit with a large RC time constant compared to the first series loop path, the bias voltage source being selected to be capable of biasing the forward conduction path of the transistor near its breakdown condition; coupling an antenna means to the load device for transmitting electromagnetic energy pulses into space; sampling an original information signal upon each occurrence of a periodic reference signal; and in response to the signal samples, triggering the transistor into its breakdown or avalanche mode so as to create a series of successive transmitted pulses whose starting times are modified in accordance with the value of the original information signal upon each occurrence of the periodic reference signal.
20. The method of Claim 19 wherein the time period of the periodic reference signal is at least many times the length of each transmitted pulse.
21. The method of Claim 197 wherein the load device is an inductor.
22. The method of Claim 21 wherein the time period of the periodic reference signal is at least many times the length of each transmitted pulse.
PCT/US1995/014683 1994-11-10 1995-11-13 Electrical circuit utilizing avalanche transistor for generating and transmitting sine-wave energy pulses WO1996015590A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU42352/96A AU4235296A (en) 1994-11-10 1995-11-13 Electrical circuit utilizing avalanche transistor for generating and transmitting sine-wave energy pulses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/337,045 US5586145A (en) 1993-01-11 1994-11-10 Transmission of electronic information by pulse position modulation utilizing low average power

Publications (2)

Publication Number Publication Date
WO1996015590A1 WO1996015590A1 (en) 1996-05-23
WO1996015590B1 true WO1996015590B1 (en) 1996-07-04

Family

ID=23318875

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1995/014683 WO1996015590A1 (en) 1994-11-10 1995-11-13 Electrical circuit utilizing avalanche transistor for generating and transmitting sine-wave energy pulses

Country Status (3)

Country Link
US (2) US5586145A (en)
AU (1) AU4235296A (en)
WO (1) WO1996015590A1 (en)

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