1、55 IREfl.Sl IRE STANDARDS ON ANTENNAS AND WAVEGUIDES: DEFINITIONS FOR WAVEGUIDE COMPONENTS, 1955 Reprinted from the PROCEEDINGS OF THE IJR.E. VOL. 43, NO. 9, SEPTEMBER, 1955 PRINTED IN THE U.S.A. IRE Standards on Antennas and Waveguides: Definitions for Waveguide Components, 1955* COMMITTEE PERSONNE
2、L Subcommittee on Waveguide and Transmission Line Definitions 1953-55 G. A. DESCHAMPS, Chairman, 1954-55 P. H. SMITH, Chairman, 1953-54 H. Jasik R. L. Mattingly W. Sichak Committee on Antennas and Waveguides 1953-56 P. H. SMITH, Chairman, 1954r-55 H. JASIK, Chairman, 1955-56 D. C. PORTS, Chairman, 1
3、953-54 H. JASIK, Vice-Ch., 1954-55 G. A. DESCHAMPS, Vice-Ch., 1955-56 P. H. SMITH, Vice-Ch., 1953-54 P. S. Carter G. A. Deschamps J. E. Eaton H. A. Finke A. G. Fox S. Frankel A. G. Giordano H. Jasik K. Tomiyasu W. C. Jakes E. T. Jaynes O. E. Kienow P. A. Loth W. E. Waller R. L. Mattingly A. A. Oline
4、r K. S. Packard D. C. Ports M. S. Wheeler J. Ruze W. Sichak G. Sinclair P. H. Smith Standards Committee 1955-56 E. WEBER Chairman M.W.BALDWIN,JR., Vice-chairman R. F. SHEA, Vice-Chairman L. G. CUMMING, Vice-Chairman J. Avins W. R. Bennett J. G. Brainerd P. S. Carter P. S. Christaldi A. G. Clavier J.
5、 E. Eiselein A. W. Friend V. M. Graham R. A. Hackbusch H. C. Hardy P. J. Herbst H. R. Terhune Hans Jaffe Henry Jasik A. G. Jensen J. L. Jones J. G. Kreer, Jr. E. A. Laport W. T. Wintringham Definitions Co-ordinator M. W. BALDWIN, JR. A. A. Macdonald Wayne Mason D. E. Maxwell K. R. McConnell H. R. Mi
6、mno M. G. Morgan J. E. Ward G. A. Morton H. L. Owens C. H. Page P. A. Redhead R. Serrell R. M. Showers As used in the following definitions, Waveguide is a generic term which includes transmission line and uni-conductor waveguides as special cases. For specific defi nitions see S3 IRE 2. SI. DEFINIT
7、IONS Attenuator, Waveguide. A waveguide device for the purpose of producing attenuation by any means, includ ing absorption and reflection. Bend, Waveguide. A section of waveguide in which the direction of the longitudinal axis is changed. Butt Joint. A connection between two waveguides which provid
8、es physical contact between the ends of the wave guides in order to maintain electrical continuity. Cavity Resonator (in Waveguides). A resonator formed by a volume of dielectric bounded by reflecting walls. Cavity Resonator Frequency. Meter. A cavity resonator used to determine frequency of an elec
9、tromagnetic wave. * Reprints of this Standard, 55 IRE 2.S1, may be purchased while available from The Institute of Radio Engineers, 1 East 79 Street, New York 21, N. Y., at $0.25 per copy. A 20 per cent discount will be allowed for 100 or more copies mailed to one address. INTRODUCTION A set of defi
10、nitions of basic waveguide terms pre pared by the Technical Committee on Antennas and Waveguides was published as IRE Standards in De cember, 1953 (53 IRE 2. SI). The present Standards on Waveguide Components, Definitions of Terms, repre sent an extension of the work of this committee from 1953 to 1
11、955. Waveguide component terms have not previously been standardized by the IRE; however, with continu ing development in this field the need for such defini tions has become increasingly apparent. The present list comprises only the more general, basic and estab lished terms. For example, Waveguide
12、 Transformer is defined but the many specific types of waveguide trans former such as Double Stub Transformer, Quarter-Wave Sleeve Transformer, Probe Transformer, Eccentric Line Transformer, and others are not defined. 1074 PROCEEDINGS OF THE IRE September Choke Joint. A connection between two waveg
13、uides which provides effective electrical continuity without metallic continuity at the inner walls of the waveguide. Connector, Waveguide. A mechanical device for elec trically joining separable parts of a waveguide system. Coupling Aperture (Coupling Hole, Coupling Slot). Aperture in wall of waveg
14、uide or cavity resonator de signed to transfer energy to or from an external circuit. Coupling Loop. A conducting loop projecting into a waveguide or cavity resonator, designed to transfer energy to or from an external circuit. Coupling Probe. A probe projecting into a waveguide or cavity resonator
15、designed to transfer energy to or from an external circuit. Directional Coupler. A four-branch junction consisting of two waveguides coupled together in a manner such that a single traveling wave in either guide will induce a single traveling wave in the other, direction of latter wave being determi
16、ned by direction of the former. E-H Tuner. An E-H tee used for impedance transforma tion having two arms terminated in adjustable plungers. E-H Tee. A junction composed of a combination of E and H-plane tee junctions having a common point of intersection with the main guide. E-plane Bend. For a rect
17、angular uniconductor wave guide operating in the dominant mode, a bend in which the longitudinal axis of the guide remains in a plane parallel to the electric field vector throughout the bend. E-plane Tee Junction. For a rectangular uniconductor waveguide, a tee junction of which the electric field
18、vec tor of the dominant wave of each arm is parallel to the plane of the longitudinal axes of the guides. H-plane Bend. For a rectangular uniconductor wave guide operating in the dominant mode, a bend in which the longitudinal axis of the guide remains in a plane parallel to the plane of the magneti
19、c field vector throughout the bend. H-plane Tee Junction. For a rectangular uniconductor waveguide, a tee junction of which the magnetic field vector of the dominant wave of each arm is parallel to the plane of the longitudinal axes of the guides. Hybrid Junction. Waveguide arrangement with four bra
20、nches which, when branches are properly terminated, has the property that energy can be transferred from any one branch into only two of remaining three. NoteIn common usage, this energy is equally di vided between the two branches. Hybrid Tee. A hybrid junction composed of an E-H Tee with internal
21、matching elements, which is reflectionless for a wave propagating into the junction from any arm when the other three arms are match terminated. Iris (Diaphragm). In a waveguide, a conducting plate or plates, of thickness small compared to a wavelength, I occupying a part of the cross section of the
22、 waveguide. NoteWhen only a single mode can be supported an iris acts substantially as a shunt admittance. Line Stretcher. A section of waveguide whose physical length is variable. Magic Tee. See Hybrid Tee. Mode Filter. A selective device designed to pass energy along a waveguide in one or more mod
23、es of propagation and substantially reduce energy carried by other modes. Mode Transducer (Mode Transformer). A device for transforming an electromagnetic wave from one mode of propagation to another. Phase Shifter, Waveguide. A device for adjusting the phase of a particular field component (or curr
24、ent or volt age) at output of device relative to the phase of that field component (or current or voltage) at the input. Plunger, Waveguide. In a waveguide, a longitudinally movable obstacle which reflects essentially all the inci dent energy. Post, Waveguide. In a waveguide, a cylindrical rod place
25、d in a transverse plane of the waveguide and be having substantially as a shunt susceptance. Resonator, Waveguide (Resonant Element). A wave guide device primarily intended for storing oscillating electromagnetic energy. Rotating Joint. A coupling for transmission of electro magnetic energy between
26、two waveguide structures de signed to permit mechanical rotation of one structure. Series Tee Junction. A tee junction having an equiva lent circuit in which the impedance of the branch guide is predominantly in series with the impedance of the main guide at the junction. Shunt Tee Junction. A tee j
27、unction having an equiva lent circuit in which the impedance of the branch guide is predominantly in parallel with the impedance of the main guide at the junction. Slug Tuner. A waveguide tuner containing one or more longitudinally adjustable pieces of metal or dielectric. Stub, Waveguide. An auxili
28、ary section of waveguide with an essentially nondissipative termination and joined at some angle with the main section of waveguide. Taper, Waveguide. A section of tapered waveguide. Tapered Waveguide. A waveguide in which a physical or electrical characteristic changes continuously with distance al
29、ong the axis of the guide. Tee Junction. A junction of waveguides in which the longitudinal guide axes form a T. NoteThe guide which continues through the junc tion is the main guide; the guide which terminates at a junction is the branch guide. Transformer, Waveguide. A device, usually fixed, added
30、 to a waveguide for the purpose of impedance transfor mation. Tuner, Waveguide. An adjustable device added to a waveguide for the purpose of impedance transformation. Tuning Probe. An essentially lossless probe of adjustable penetration extending through the wall of the wave guide or cavity resonator. Twist, Waveguide. A waveguide section in which there is a progressive rotation of the cross section about the longitudinal axis. Wye Junction. A junction of waveguides such that the longitudinal guide axes form a Y.
