US2721265A - Radio wave generator - Google Patents
Radio wave generator Download PDFInfo
- Publication number
- US2721265A US2721265A US190630A US19063050A US2721265A US 2721265 A US2721265 A US 2721265A US 190630 A US190630 A US 190630A US 19063050 A US19063050 A US 19063050A US 2721265 A US2721265 A US 2721265A
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- United States
- Prior art keywords
- pulses
- pulse
- tubes
- frequency
- high frequency
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000010355 oscillation Effects 0.000 description 10
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 230000035939 shock Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 238000002242 deionisation method Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 241000283715 Damaliscus lunatus Species 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
- G01S1/08—Systems for determining direction or position line
- G01S1/20—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/78—Generating a single train of pulses having a predetermined pattern, e.g. a predetermined number
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/24—Automatic control of frequency or phase; Synchronisation using a reference signal directly applied to the generator
Definitions
- Another object of the invention is to provide apparatus such 3S ShOWn at 31 .1n Flg. 1, are applied to input termifor generating radio frequency pulses of stable and easily nais 28. Upon application of one of these pulses to the reproducible envelope Shape grid of gaseous tube lhthis tube becomes conductive and A further object of the invention is to provide a radio allows Condenser 6, Whlehhas Previously Charged through frequency generating device which achieves a high degree reslstOf 13 t0 the POteutld 0f source' 12, t0 discharge of power conversion efliciency at high power levels.
- An additional object of the invention is to provide high 11- The resulting Pulse 0f euefgy lldueed in the SeC- power radio frequency generating apparatus which requires 40 ondary winding 32 shock excites the resonant circuit 32- little input Signal driving power for its power output ll'ltO OSClllatlOD at ltS IeSOIlaDt frequency.
- the delay PlOdueed by eheh 0f hetWOrks 24-27 iS gam made exactly equal to the period of resonant circuit $2- A more Complete description of the invention be 30.
- Fig. l shows a high frequency pulse generating circuit in Uve Permittlhg Condenser 7 t0 discharge thrOugh the priaccordanoo with invention employing ve gaseous dis mary of transformer 11 with the result that a second pulse charge tubes; of energy is applied to the resonant circuit 32-30.
- the trigger pulse will have reached tube 3 and so on until the remaining.
- Fig. 3 shows an alternative method of operating the circuit of Fig. l in which the sequence of gaseous discharge tubes are utilized more than once in the generation of a high frequency pulse.
- the circuit shown operates to generate a series of pulses of high frequency energy.
- the circuit employs tive gaseous discharge devices, such as thyratron tubes, numbered 1 through 5.
- the number of gaseous discharge devices needed depends principally upon the desired frequency of the generated wave and the desired pulse width, since the number of cycles of high way of example, in Fig. 1. representations of Fig.
- the tubes 1 through 5 are connected in series with concult Shown in Fig- 1 and a degree 0f damping that results denser-s 6 through 10, respectively, aol-oss the primary in three cycles of oscillation for each shock excitation of winding of transformer 11 so that each condenser may disthe resonant eieuit- Sillee 011e gaseOuS tube is used t0 charge through the primary winding when the correspondgenerate each damped oscillation the number of cycles in ing tube is in a conductive state.
- the tubes are in the high frequency pulse is determined primarily by the number of tubes used in the sequence, and secondarily by the number of cycles contained in each damped oscillation.
- time spacing between pulses 31 be uniform as shown in Figs. 1 and 2.
- This spacing may be varied in any desired way, however, in cases where a complete high frequency pulse is to be generated for each trigger pulse the spacing between trigger pulses should not be less than the duration of the high frequency pulse envelope. Also the interval between pulses must not be less than the deionization time of the gaseous tubes used.
- the sequence may be used more than once during each output pulse. This may be accomplished by the use of an accurately time-spaced multiple trigger pulse train such, for example, as shown in Fig. 3a.
- the interval t between pairs ofktrigger pulses must be exactly equal to the period of the high frequency multiplied by the number of tubes in the sequence.
- Fig. 3 shows the trigger pulses in groups of two and three it is of course possible to employ any desired number of pulses in a group. It will also be evident from the above that a continuous high frequency wave could be generated by la continuous train of trigger pulses separated by intervals t.
- the invention may be used for the broadcast of speech, music and similar intelligence by frequency modulation of lthetriggering pulses or amplitude modulation of the high frequency output energy.
- Apparatus for generating high frequency energy comprising a resonant circuit tuned to the desired frequency of said energy, coupling means for applying pulses of energy to said resonant circuit, said coupling means having a pair of input terminals, a plurality of gaseous discharge tubes each having at least an anode, a cathode and a control grid, a plurality of branch circuits connected in parallel across said input terminals, each of said branch circuits comprising a condenser and the anodecathode path of one of said tubes connected in series, means for charging said condensers to a predetermined potential, a grid circuit connected between the grid and cathode of each of said tubes, means forming part of said grid circuits for biasing the grids of said tubes sufficiently to render said tubes normally nonconductive at the said predetermined potential to which said condensers are charged, means coupling said grid circuits in cascade, said means comprising delay networks, each producing a delay equal to the period of the frequency to which said resonant
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Lasers (AREA)
Description
Oct 18, 1955 M. 1. ROTHMAN ETAL 2,721,265
RADIO WAVE GENERATOR Filed Oct. 17, 1950 f /3 /M- //f f/e /7 /f/ 50 /E Y /Z "-/6 Jf7 -Lf 2 'Lf/0 29 L l 2 3 4 .i
Ja 3/2 Il Il n Il n 24) ref fa'e '75 Y army army pam' pfmv 28 NETWORK Hirn/018K Nfrwoek Erwmek 0 2/ zz z3 f/ :MIM- L NVE T0 M91. A for/Ma Rs BY e United States Patent Otiice Patented OCQ t, 2,721,5265 f "i131111,-rrespectivelyghand :theprimarywinding oftranstf 'former 11. LThec'ndense'i-s tu-1l0-discharge^morerapidly "ffRADIO-WAVEGENERATOR l 51y :than-they leifarge sineeaisehargetskespiaee'thrugh. the 1% @f f f Nj 1\/[err,`arf{--Har comparativelydowf'p'late:resistance of -the gaseous'tubes Max L Rothrgalghvlgfldtdgn N. J. ry s? whereas the-cendensers must be:chargedthroughthecomr tu par'ativelyhigh'lresistanc` of resistorsJ` 1-3-'i-17. *Appliction'ctoberA731950; Serial- 1510.- 190,630 The control grids of tubes I srrarernonuyobased g A1 Chimp `((jl250= 3,6) l't'beyontdf the eut-ufrt or-breakdown pointyfdr the Aparticular a'riodevoltageenployd; bybias potential from directrcurrent- 'bias fs'oure 18 facting through 'resistois- V19h4.31'i-The lgridcircuits ofadja'cent' tubes ii'ilthe ychairi of'tubsI-S are connected;togetherfbymeans of pulse'delay'networks 2li-L27.E Thedela'y circuits are'each radjusted topi'oduce v"-Tlieinvention"kiesfcribderein'maybe manufactured 15 tn'dused by brfdr the'Government 'forgovernm'ental pur- 'fatdelayequalftbthe'pefiod f theiadiofrequencywave to @poses -withouttpayni'ent tome ofany-royaltythereon. hf b'e-generateds Thevse'circui-ts-:niay be of "anyknownjtype S"This invntionrelates to'a 'devicefor generating radio .f-=cpable of producing therequi-reddelay suchjforexa'mple, l'frequency'energyand-particularly to* an arrangement for Fl astde'la-yhlinesg"tuhedfleicuitsrf-rriultivihratorsfQ or'phangenerating high power radio frequency Aenergy directly -3tastron"c1rcl11ts,rtheflatterbeing"a'idelayn'circuit offthegtype from an array of gaseous discharge devices. The invenl 'fdeseribed onpages-58f-64;chapter 2;" ofJ Principles of tion 'i's 'particularly'suited to the Vgeneration of pulses of 511Radarft-secondeditioni T.Radar"`cliol*StaiMchigh frequencyenergyr-such 'as-required, for example, in th GTaIw-Hill=Bol` f Company." Inputterminals-v 23x arepro- -;r,the` Loran navigational systenir-bu'tcmay also' beused to vidd'-for applying' input signal-pulses toth'efgrid of tube -ragenerateontinuous radio Waves, 1w Thefdtplltldo fr'eqll'ellCyJWaVe S`ake11lfl'Qmi0l1t- 1f Itis-accordingly an object ohtheinvention to provide Y put terminals 29 connected to the secondary( of trans- `-,.-..iniproved means for generatinghigh power radio frer'fformer11?'iiThe'seciidary'winding istuiie'd' by con- `z-ffqueneyY energy, in the form of-pulses' occurring atgregu- 0 denseif 30 tosre's'onate at theldesire'd outputv frequency.
- f-lar or irregular intervals or inthe-form of aoo'iitinuous huabovede'scfribedcircuit:operatesfluponfthe'ppliwave, which possesses a high degree of radio frequency cation of a trigger p ulse to thefinput terminals 28; .to'genstability and accuracy of time reference with respect to y @rato a pulse of highv frequency energy.-6i'ssume, for the triggering pulses. wfexample, thatlatrarn ofequallyftiine spaced'trilgger pulses,
Another object of the invention is to provide apparatus such 3S ShOWn at 31 .1n Flg. 1, are applied to input termifor generating radio frequency pulses of stable and easily nais 28. Upon application of one of these pulses to the reproducible envelope Shape grid of gaseous tube lhthis tube becomes conductive and A further object of the invention is to provide a radio allows Condenser 6, Whlehhas Previously Charged through frequency generating device which achieves a high degree reslstOf 13 t0 the POteutld 0f source' 12, t0 discharge of power conversion efliciency at high power levels. through the tube and the Pflmafy Wludlug 0f transformer An additional object of the invention is to provide high 11- The resulting Pulse 0f euefgy lldueed in the SeC- power radio frequency generating apparatus which requires 40 ondary winding 32 shock excites the resonant circuit 32- little input Signal driving power for its power output ll'ltO OSClllatlOD at ltS IeSOIlaDt frequency. AS already condition, or, in other words, which has a high power stated, the delay PlOdueed by eheh 0f hetWOrks 24-27 iS gam made exactly equal to the period of resonant circuit $2- A more Complete description of the invention be 30. 'Therefore7 atlthe end'of 011e Cycle of Oscillation Of given in connection with the accompanying drawings, in the resonant circuit the trigger pulse will have reached which the grid of gas tube 2 which thereupon becomes conduc- Fig. l shows a high frequency pulse generating circuit in Uve Permittlhg Condenser 7 t0 discharge thrOugh the priaccordanoo with invention employing ve gaseous dis mary of transformer 11 with the result that a second pulse charge tubes; of energy is applied to the resonant circuit 32-30. Similarly, at the end of the second cycle of oscillation of the resonant circuit the trigger pulse will have reached tube 3 and so on until the remaining. condensers 8, 9 and 10 have been discharged through the primary of transformer 11. The resulting high frequency pulses produced at the output terminals 29 are shown in Fig. 2b, the trigger pulses 31 being shown on an expanded time scale at (a). The number of oscillations of tuned circuit 32-30 that lwill be produced by each pulse of energy applied thereto depends on the amount of damping present. In cases 0 where more than one cycle of oscillation results from the shock excitation of the circuit it will be evident that the first cycle of each oscillation will be reinforced by the frequency energy composing each pulse is determined prinsecon@ cyle of he preceding oscillation t.he Second cycle cipally by the number of tubes used. The invention, 5 of Osc1-uanon-wlu. be remford by the thlrd cycle of the therefore, is not limited to the number of tubes shown, by preceding oscillation and so on The high frequency pulse Fig. 2 shows the time relationship between triggering 50 pulse and generated high frequency pulses; and
Fig. 3 shows an alternative method of operating the circuit of Fig. l in which the sequence of gaseous discharge tubes are utilized more than once in the generation of a high frequency pulse.
Referring to Fig. 1, the circuit shown operates to generate a series of pulses of high frequency energy. The circuit employs tive gaseous discharge devices, such as thyratron tubes, numbered 1 through 5. The number of gaseous discharge devices needed depends principally upon the desired frequency of the generated wave and the desired pulse width, since the number of cycles of high way of example, in Fig. 1. representations of Fig. 2b are based on the use of the cir- The tubes 1 through 5 are connected in series with concult Shown in Fig- 1 and a degree 0f damping that results denser-s 6 through 10, respectively, aol-oss the primary in three cycles of oscillation for each shock excitation of winding of transformer 11 so that each condenser may disthe resonant eieuit- Sillee 011e gaseOuS tube is used t0 charge through the primary winding when the correspondgenerate each damped oscillation the number of cycles in ing tube is in a conductive state. When the tubes are in the high frequency pulse is determined primarily by the number of tubes used in the sequence, and secondarily by the number of cycles contained in each damped oscillation.
It is, of course, not essential that the time spacing between pulses 31 be uniform as shown in Figs. 1 and 2. This spacing may be varied in any desired way, however, in cases where a complete high frequency pulse is to be generated for each trigger pulse the spacing between trigger pulses should not be less than the duration of the high frequency pulse envelope. Also the interval between pulses must not be less than the deionization time of the gaseous tubes used.
In case where the high frequency pulse envelope duration desired is greater than the deionization time of the gaseoustubes used the sequence may be used more than once during each output pulse. This may be accomplished by the use of an accurately time-spaced multiple trigger pulse train such, for example, as shown in Fig. 3a. The resulting high frequency pulses, for a five tube sequence such as shown in Fig. l, are shown in Fig. 3b. The interval t between pairs ofktrigger pulses must be exactly equal to the period of the high frequency multiplied by the number of tubes in the sequence. Although Fig. 3 shows the trigger pulses in groups of two and three it is of course possible to employ any desired number of pulses in a group. It will also be evident from the above that a continuous high frequency wave could be generated by la continuous train of trigger pulses separated by intervals t.
The invention may be used for the broadcast of speech, music and similar intelligence by frequency modulation of lthetriggering pulses or amplitude modulation of the high frequency output energy.
We claim:
Apparatus for generating high frequency energy, said apparatus comprising a resonant circuit tuned to the desired frequency of said energy, coupling means for applying pulses of energy to said resonant circuit, said coupling means having a pair of input terminals, a plurality of gaseous discharge tubes each having at least an anode, a cathode and a control grid, a plurality of branch circuits connected in parallel across said input terminals, each of said branch circuits comprising a condenser and the anodecathode path of one of said tubes connected in series, means for charging said condensers to a predetermined potential, a grid circuit connected between the grid and cathode of each of said tubes, means forming part of said grid circuits for biasing the grids of said tubes sufficiently to render said tubes normally nonconductive at the said predetermined potential to which said condensers are charged, means coupling said grid circuits in cascade, said means comprising delay networks, each producing a delay equal to the period of the frequency to which said resonant circuit is tuned, connected between adjacent pairs of the grid circuits in said cascade, means for applying a positive trigger pulse to the first of the grid circuits in said cascade, and means for coupling said resonant circuit to a load circuit.
References Cited in the tile of this patent UNITED STATES PATENTS Chambers Oct. 13, 1953
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US190630A US2721265A (en) | 1950-10-17 | 1950-10-17 | Radio wave generator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US190630A US2721265A (en) | 1950-10-17 | 1950-10-17 | Radio wave generator |
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US2721265A true US2721265A (en) | 1955-10-18 |
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US190630A Expired - Lifetime US2721265A (en) | 1950-10-17 | 1950-10-17 | Radio wave generator |
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2831972A (en) * | 1954-06-04 | 1958-04-22 | Gen Dynamics Corp | Pulse generator |
US2912576A (en) * | 1953-04-30 | 1959-11-10 | Siemens Ag | Impulse timing chain circuits |
US3019393A (en) * | 1958-09-02 | 1962-01-30 | Robotron Corp | Sequential load switching utilizing discharge timing means |
US3167661A (en) * | 1961-01-30 | 1965-01-26 | Laddie T Rhodes | Fast recharging pulse generator |
US3243729A (en) * | 1963-06-28 | 1966-03-29 | Westinghouse Electric Corp | Sine wave generator comprising a resonant load energized by a plurality of resonant charge-discharge stages |
US3243728A (en) * | 1963-06-28 | 1966-03-29 | Westinghouse Electric Corp | Sine wave generator comprising a plurality of resonant circuits discharged into a resonant load |
US3323076A (en) * | 1963-03-26 | 1967-05-30 | Westinghouse Brake & Signal | Relaxation inverter circuit arrangement |
US3412201A (en) * | 1965-01-05 | 1968-11-19 | Westinghouse Electric Corp | Deriving a continuous wave signal |
US5293527A (en) * | 1991-08-05 | 1994-03-08 | Science Applications International Corporation | Remote vehicle disabling system |
US6371000B1 (en) | 1994-07-11 | 2002-04-16 | Jaycor | Electromagnetic vehicle disabler system and method |
US7475624B1 (en) * | 2006-05-26 | 2009-01-13 | The United States Of America As Represented By The Secretary Of The Navy | Electromagnetic pulse generator |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2103090A (en) * | 1934-12-05 | 1937-12-21 | Radio Patents Corp | Means for and method of generating electrical currents |
US2414541A (en) * | 1943-07-31 | 1947-01-21 | Westinghouse Electric Corp | Electronic frequency multiplier |
US2486176A (en) * | 1946-02-12 | 1949-10-25 | Raytheon Mfg Co | Shock-excited oscillator |
US2606289A (en) * | 1945-03-08 | 1952-08-05 | Russell S Stanton | Electrical pulse generator |
US2637810A (en) * | 1948-11-12 | 1953-05-05 | Potter Instrument Co Inc | Electronic pulse generator |
US2655595A (en) * | 1953-10-13 | Keying system |
-
1950
- 1950-10-17 US US190630A patent/US2721265A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2655595A (en) * | 1953-10-13 | Keying system | ||
US2103090A (en) * | 1934-12-05 | 1937-12-21 | Radio Patents Corp | Means for and method of generating electrical currents |
US2414541A (en) * | 1943-07-31 | 1947-01-21 | Westinghouse Electric Corp | Electronic frequency multiplier |
US2606289A (en) * | 1945-03-08 | 1952-08-05 | Russell S Stanton | Electrical pulse generator |
US2486176A (en) * | 1946-02-12 | 1949-10-25 | Raytheon Mfg Co | Shock-excited oscillator |
US2637810A (en) * | 1948-11-12 | 1953-05-05 | Potter Instrument Co Inc | Electronic pulse generator |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2912576A (en) * | 1953-04-30 | 1959-11-10 | Siemens Ag | Impulse timing chain circuits |
US2831972A (en) * | 1954-06-04 | 1958-04-22 | Gen Dynamics Corp | Pulse generator |
US3019393A (en) * | 1958-09-02 | 1962-01-30 | Robotron Corp | Sequential load switching utilizing discharge timing means |
US3167661A (en) * | 1961-01-30 | 1965-01-26 | Laddie T Rhodes | Fast recharging pulse generator |
US3323076A (en) * | 1963-03-26 | 1967-05-30 | Westinghouse Brake & Signal | Relaxation inverter circuit arrangement |
US3243729A (en) * | 1963-06-28 | 1966-03-29 | Westinghouse Electric Corp | Sine wave generator comprising a resonant load energized by a plurality of resonant charge-discharge stages |
US3243728A (en) * | 1963-06-28 | 1966-03-29 | Westinghouse Electric Corp | Sine wave generator comprising a plurality of resonant circuits discharged into a resonant load |
US3412201A (en) * | 1965-01-05 | 1968-11-19 | Westinghouse Electric Corp | Deriving a continuous wave signal |
US5293527A (en) * | 1991-08-05 | 1994-03-08 | Science Applications International Corporation | Remote vehicle disabling system |
US6371000B1 (en) | 1994-07-11 | 2002-04-16 | Jaycor | Electromagnetic vehicle disabler system and method |
US7475624B1 (en) * | 2006-05-26 | 2009-01-13 | The United States Of America As Represented By The Secretary Of The Navy | Electromagnetic pulse generator |
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