US1116588A - Receiver for wireless communication. - Google Patents

Description

Wa HARRSN.

RECEIVER FOR WIRELESS GGMMUNCATIN.

APPLICATION FILED IEB. 8,1904.

MM5. 1` mme@ Nw. 10, 1914.

llltlltllllt PATEN T OFFICE.

WALTON HARRISGN, OF BROOKLYN, NEW YORK.

nncnrvnn non wrnntnss communicanten.

arranca serially. Fig. 2 is a diagrammatic perspec-A tivfe View of the entire apparatus in action.

A number of posts l, are `arranged in straight rows, the general direction of each row being slightly askew relatively to the path of Lpropagation ol the Waves, so as to crossthe same at an angle, as indicated in ll*"ig.` 2. Upon each post is an insulator 5,

providedV with a seat 6, the several seats in each row being in alinement With eachother. The antennae, or Wave collectors, consisting of longitudinal metallic conductors of sinusoidal form, arel mounted in the seats as shown.v Each antenna is provided at its ends with 'binding posts 7, 7a. From `the binding post 7 of one antenna, a Wire 8 leads to a vvvave-responsive device', such as a vcoherer 9. A. Wire 1 is conne`cted with the Wire 8, and with a switch button 11. A similar switch button 12 is in communication. with the coherer.

By moving the switch arm into engagement with the respective buttons, the coherer may .at Will be cut out of or into the battery circuit. `Flhe Wire 18 connects the battery with the binding post 7a of the last antenna of the`series. The several antennae are joined together, preferably in series as shown, by

connecting Wires 19. 'l do not limit myself, however, 'to the serial arrangement, as the antennae may be connected in other Ways. The crests ot the' several electromagnetic warts are indicated at 20, 21', 22 and 23. l".

preferably employ lllertazian'waves radiated 'from e, vertical oscillator 24, but for many purposes other electromagnetic Waves and electr 1c radiations of divers other kinds may be employed successfully.

vllach antenna, because oi its 'sinusoidal conformity, may, 'for convenience, be conf sidered as made up oit subdivisions Zi, d, disposed in dii-ferent directions, and integrally connected together in series. Since the general, length ofeach antenna is' aslrevv A switch arm 13 is connected by a Wire 14 with 'a telephonie receiver 15,' from'vvhih a Wire 16 leads to a battery 17.-'

Adirection of travel of the Waves.

relatively to the direction of propagation of the Waves (see Fig. 2), the curves ofthe antennae are a little more 'than `a Wavelength apart, measured from crest to crest in the general direction of the antenna, in

y I `Specication of Letters latent. i Patented N0V10 1914.

Application filed February, 1904. Serial No. 19,624 f order'to maintain them exactly a wave-" lengthapart as measured in a direct'line from the transmittlng station;

`My'` purpose in disposmg the antennae askewfrelatively to the direction of prepagation of the Waves is to enable each sub 'division of every antenna to'be acted upon by a different part oi" each vsuccessive wave.

-s theconne'cting wires 1 9 areall end-on toward' thetransmittin'gl station, Vthey are not aliected materially by the Waves. An observer standing at the oscillator 24, and looking toward the `battery of antennae would apparently behold (aside from the questioner' distance),each antenna through- "out its entire length, and Would also seeeach subdivision or each antenna in*y the entire battery. He Would see, in substance, a single antenna occupying a comparatively large fraction of the horizon. It Will be observed that, on account of the several antennae being disposed askew, no subdivision is in the electrical shadow of any other subdivision. The several subdivisions may therefore be regarded as s o many units eX- posed separately to wave action, yet located half a Wave length apart in the general I find that by this arrangement each unit or subdivision acts to its full capabilities, as if segregated, yet the telephonie receiver or other indicator responds cumulatively to an extent commensurate with the effect of a single unit'multiplied by the number of units in the entire system. When the YWaves arrive from a direction represented by the positionotthe oscillator 24, and set up surgings in the units of the receiving antennae, these surgings are in phase'with the Waves.` W'lie'n, however, the Waves arrive from any other direction than the one indicated, the Waves arriving and the oscillations set 'up in the units tend to develop phase di'erences,`q,nd discord is the result. They battery ol antenn as a Whole is therefore more sensitive to Waves arriving from a certaindeinite direction than from other directions, and upon this account possesses a sort ot' selectivity. i

Having thus described'my invention, I

ilo

:laim as new and desire to secure by Letters Patent 1 1. A receiver system for Wireless signal ing, comprising a. plurality of antenna, members, more than two in number, spaced apart by distances of half a wave length, 4measured inv the direction of travel of the waves and connected in series with each other with "respect to oscillation set up in said antenna members.

L). The combination, in a receiver system having a plurality of supports, more than two in number, and spaced apart, of a plu rality of antenna members corresponding to the number of supports and connected together in series with each other with respect Ato oscillations set up in said antenna members, the antennae being spaced apart in the direction of travel of the waves, by distances of half a wave length.

3. The combination, in a. receiver system for'wireless signaling, of a plurality of antenna members, more than two in number, the several antenna members being s aced apart,l in the direction of travel o the waves, by distances of half a wave length, and being in series with each other with respect to oscillations set up in them.

4. In a receiver system, the combination of a number of units arranged in groups, the several groups bein vjoined together by wires radiating outwar on lines having the oscillator as a center, whereby they are prevented from interfering with the action of the units.

5. A receiving antenna comprising a number of receiving .units more than two in number, connected in series with each other and spaced apart in a direction 'crossing the path of travel of the waves, one of said units being spaced farther than another from the source of said waves of half agwave i ngth.

6. A receiving'antenna comprising units, more than two -in number,'spaced from a transmitting member byv distances dependby a distance lent upon the wave length, said units being also spaced apar in a'k general direction lateral to the gen'eral direction of trayel of the waves, and being in series Iwith respect to electrical disturbances set up in them by the` energ of said waves.

7. receiving antenna comprising a number of aerial units in series with eachother with respect to electrica1 disturbances set up in theml by wave action, said units being spaced directly apart in a direction lateral to the path of travel of the waves by distances independent of the wave length, and spaced apart in the direction of travel of said waves by distances dependent upon the wave length. Y

8. A receiving antenna comprising a number of aerial units in s eries with each other with respect to .electrical disturbances set up therein by lwave action, said units bei spaced from each other, in a direction latera to the path of travel of the waves one of said units being spaced farther than another from the source of the waves by a distance of exactly half a wave length.

' In wireless antennae, the combination of supports, and a single wire mounted upon said 'supports and bent to form loops, said loops extending in a plane common to all of them.

10. In wireless antennae, a single wire bent sinuously into loops,` all of said loops being disposed in a single plane.

1l. In wireless antennae, a single Wire bent into loops, more than two in number, said loops being disposed in a single plane. 12.- In wireless antennae, a single wire formed into loops, all of said loops being located in a common plane, and fixed supports connected with said wire for preventing said loops from turning. l

13. In lwireless antennae, a single receiving wire bent sinuously ,into loops, and means for supporting said loops in a fixed .plane disposed askew relatively to the path 16. In wireless telegraph antennae, theV combination of a plurality of'masts, and a single wire formed intrs loops extending horizontally and lying in a vertical plane between and supported by said masts, substantially as described.

17. In wireless telegraph antennae, the combination of a plurality of masts; and a single continuous wire formed into' a lurality of loops extending in a vertical p ane and supported by said masts, substantially as described.

18. In a system of transmission by electric waves, a terminal apparatus comprising a series of two or more antenna units separated by a distance equal to one wave length of the transmitted waves, and electrically connected together, a series of two or more antenna units separated by one wave length and arranged alternately with the antenna.

units `of the first series, and station apparaantenna units insulate from the earth en@ separated by one Wave engmh and arranged mtermedlate and aeeque. cilstanees from he 'antenne units of the rs; series, end station tenne uns e350 nsueef from the "in, the. sald antenna umts bemg located 1n 'the hue or' desed musmiseen and spaced apart substantey equal te (me-half 'the lengih of 'the t-ensmtee'i waves, mui mesme muteneeusfy exciting eeel sew s 0i el tenne unite with eeetrea escilenimle ef eppeste eign,

221. l-n e sysem ef t'zinsn'ieeen. by eee tric Waves, e te'mm eppem-tue compris ing antenna unite insulated .''em the earth, means ifm producing; e eerie@ @if eemrie We'vee 'having i'heir pesj've eelleantenne unite, neens fel' pre fas ef electme 'W/vee pela come@ i n@ iis eppes with ahe ende el? eiten. m testlmony W

Images