US2329784A - Radio communication system - Google Patents

Description

p 1943. H. o. PETERSON 2,329,784

RADIO COMMUNICATION SYSTEM Filed Jan. 16, 1941 2 Sheets-Sheet 1 1 j'sQ. M/LE E 4 a l 41$QM/LE 7LT z Z 2 R4 71/? n I u INVENTOR HAROLD U. P TERSG/V ATTO R N EY Sept. 21, 1943. H. PETERSON 2,329,784

RADIO COMMUNICATION SYS TEM Filed Jan. 16, 1941 2 Sheets Shee-h 2 rue I 227 ZPF 43? 5 1.- TAMI/S. pomw INVENTOR 1 HARUZD/OZETERJON BY MVM/ ATTORNEY Patented Sept. 21,1943 v p v a i I. I

UNITEB TATES v g A it 1 2 29,784 nimo e mmm s sm V -Q 'itiverliegi, e .i KadiQ-Q r0rati9n1of America; a o m; 'Q Qf De I aWar e; i,

' T Application Janua y .1 9 ,5... HQ 331L 3 (Cl; trhep'r'esent invention relates: to radioxtrans-l operation is completely coveredithariflm heeoase inflating and receiving s'yste'ms'and, more partice qf'liigureflgwhileFigure;v4vshmvsgdiagrammati; t ularly, to the physiealfarrangement of the plant canygtnearrangement;or thetransmittingcand 1 structure associated therewith. 1, r r 11.". reeeivingjstructures withinvzthei.operating gbuiidg :Anfobjec't of -thepresen't invention is'the ar- 5,- ingsoastoobtainnfinimum interaetion'between rangement of the operating plantirstructu're of a -transmitterBand:receiverii radi'ozeommunicationl station with a minimum 7 "Figureiehows azmost economicaiarr'angement' economyof space. r v of realestate forrequirement oftr'ansmittingarid Still another object is mearmngemem, as receiving overafsingle direction :circu'it; t-Aisub: aforesaid, 50 that the transmitted energyfrom'lo atan ially s'quareltraotz ofilahd; lD,.hasp1oca ted the transmitting; antennas Wi-Il notihepioked' up thereqnxatransmitting;antennasTA andzaisimilar I by-the receiving antennas: i V V J tract. :tvlmhasylocated thereoniithereceiving'ian 1 H A furtherobjctof thelpresent invention'isjthe st "cture :EFQL most! pill pqsesiitwiilth prevention of interaetionzibetwe en closely adja= f mane. f1. eaeh. of thesetracts hastan uareau f cent-.reoeiving. and.=transmitting structures; aDnr niznatelr Mac as meal-totwthelandibe 3 Still an'otherilobject of the "present invention tweentraots: iflranfdxl ,.net:.:needed. "Betweenis to take full advantage otthe directive propera the twoz'tr cts -.lfl1.ian.d.;,l tislocatedaasmall tiesilof transmitting and'receiving antenna struo- 2' or :th ztopemtingbu lding 9522' g t?- tu i i i I A i ormnnmgr-the transmission In'accordanoegvviththerrinoinles invn- 2 I larran ementishowntien- Lpmnesete;provide-receivin and-..trans=- i mittine apparatus;jW t: in-; a s n e opera me F u m bui1dine,;-to provide-adequately ,shieided transe illustration; mitter and receiver structures ahd; transmission l nes and toseparate the:.-reeeivine:ar1dt ansm tt n ntennas s faresnractic bleiwi h rr the confines of t eavailablespate and; tors orient the transmitt ng and. r ceivin a tennas. as to take best dvantag o the rd e ive char cter isties. 7 nce t ansmittin anerec ving: r t i ei antennas generally have vervlittl rad ation orre pou vtar. re t ons e r axra he r ad an le centered a ound t e d r cti ns r gh ngles o he directi n, r-Whi h illear tennaewerede-z Signed! Pre are to so ose e he transmittin and rew r n an ennas thats cn a tennas lo: cated Within the; area of minimum radiation or response of the other-oi the a tennas;- H 1 Furthermore r pe ete so Orient e m of each of the receiving and transmitting anten- 1 n we ed; i

nas that it does not cross the operating building y using 0118 0 he h r f these trans: 1 A. k or any of th other antennas; mitting antennas alone, or both in combination;

The present invention will be more clearly unit is s to Operate ny en direction be-j m derstood by reference to the following detailed tween'due east and due south. 'ThetWQtrans-iv '1' description which is accompanied by drawings in Knitting n s e ected to the Operatin which Figure 1 shows one arrangement of real u n BJby means of transmission lines TLT estate for a requirement of transmitting and reand. TLTz At the n of the pl t remote from ceiving over a single direction without interace thegtra i a nas are locatedreceiving tion between the antennas; Figure 2 shows a simantennas RA1 and RAa The receiving antenn x ilar arrangement to that shown in Figure 1 but RAi, is directed in thesame general direction as i modified so as to be suitable for operation over, 1 the transmitting antenna 'IA and the other rgi a number of different directions within anvarc of ceiving antenna RA2 is direotedin the same di- H 90 degrees; Figure 3 showsa further development rection as transmitting antenna TAz. By-a choice v of the present invention in which greater aroof of the receiving; antennas, or a combination between the receivers and transmitters is reduced.

to a minimum.

In Figure 3 I have shown a further developv ment of the structure shown in Figure 2. In this embodiment the plant structure. is disposedoven a tract of land 3| which is preferably square in? shape and may have a totalarea of approximately 160 acres.

However, since the northwest corthe antennas cross this corner, it need not be reserved forthestation. Thereceiving antennas,v

RAS and RAE;iare paired with'the' transmitting antennas, 'TAE and .TAS,-1to provide. duplex operationliin several' directions at :once; The operating'building OB is, as in.the'previousembodiments described, located approximately midway between the transmitting and receiving antennas. Transmission lines .TLTiand TLR :c'onnect the antennas to the. equipment Within the operating building OB. 1 In this arrangement eastward transmission is radiated by the antennas, 'IAE, and transmission toward the-south" is from antennas TAS. jj'I (have indicated in I this figure angles Mand -e 'overwhich minimum energy is radiated from'the transmitting antennas TAE and'I'AS. It should'benoted that there'ceiving antennas R AS and RAE are situated within the area of minimum energy from: the transmitting antennas. Furthermore, therece'iving antennas do'vnot p'oint towardthetransmitting antennas or'the operating building OB, nor does the transmitted energy from the antennas TAE and TAS cross" the operating buildingOB. 1 a

1. In Figure 4 Ihaveshown a preferred'manner of arranging the equipmentwithin the-operat ing' building OB; The building is preferably constructedflof some conductive material so as to obtain as much shielding eifect as possible. With in the building OB isarranged a shielded room 42 withinjwhich-is located transmitter 43. {I'he energy generated by transmitter 43jis"carried to the transmittingiantennas'by transmission line TLT which is preferably of-the concentric cable typeso as to reduce unwantedradiation asmuch as possible Balanced. two wire lines may, of course, be'used if desired; In order-to prevent interference due to energy'traveling backon the power line from the transmitter a low pass filter LPF is placed in series with the power line at the point where the power line passes through the shielding wall 42. The receivers 44 within the main building OB are placed in any convenient location therein and connected to the receiving antennas b a concentric transmission line 'ILR.

While I have particularly shown and described several modifications of my invention, it is to be distinctly understood that my invention is not limited thereto but that improvements within the scope of the invention may be made.

I claim:

1. A radio communication station comprising a system of directive transmitting antennae, a .system' of fixed directive receiving antennae spaced therefrom, said systems being arranged f to'have'sub'stantially non-overlapping zones of maximum effectiveness in difierent directions, each zone being efiective over an angle not ex- 3 ceeding' 90 degrees,.transducer equipment located between said systems, transmission lines connecting'said systems to said transducer equipment, said antennae beingso disposed that Within said angle the zone of;efiectiveness of each of said systems'doesnotcross theother of said systems, nor cross the transducer equipment nor the transmission lines connecting the other system to said transducer. equipment, said transducer equipment and said transmission lines being located in a zone of minimum radiation from said transmittingantenna.

2. A :radio communication station; comprising a fixed directive transmitting'antenna, a fixed directive receiving antenna spaced therefrom, said antennae beingarranged to havetheir zones of, maximum effectiveness/cover substantially non-overlapping angles not exceedingQOdegrees, transducer equipment" located, substantially midway'between said antennae and connected to said antennae, said antennae being so. disposed that within said angle the zone of effectiveness of each of said antennae does not cross the otherof said systems nor the transducer equipment connected thereto, said" transducer equipment being located ina zone of minimum energy radiation from said transmitting antennae. J i

' 3. A radiocommunication station comprising fixed directive transmitting and receiving antennas arranged atopposite 'endsof a tract of land and an operating building housing transducer equipment for'said antennas and arranged substantially at the center of said tract, said antennas being so arranged so as to have substantially non-overlapping zones of maximum effectiven'ess each zone covering an angle not exceeding 90 degrees, the zone of each of said antennas being such that itdoes notcross the other antenna or said operating building, said receiving antenna being further so arranged as to have a maximum amount of unoccupied area of said tract within its zone ofm'aximum efiectiveness. HAROLD O. PETERSON.

Images