ECA EIA-200-B-2018 Circular Waveguides and Flanges.pdf
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1、EIA SPECIFICATIONCircular Waveguides and Flanges EIA-200-B (Revision of EIA-RS-200-A) April 2018 Electronic Components Industry Association EIA-RS-200-BANSI/EIA-200-B-2018 Approved: April 24, 2018NOTICEEIA Engineering Specifications and Publications are designed to serve the public interest through
2、eliminating misunderstandings between manufacturers and purchasers, facilitating interchangeability and improvement of products, and assisting the purchaser in selecting and obtaining with minimum delay the proper product for his particular need. Existence of such Specifications and Publications sha
3、ll not in any respect preclude any member or nonmember of ECIA from manufacturing or selling products not conforming to such Specifications and Publications, nor shall the existence of such Specifications and Publications preclude their voluntary use by those other than ECIA members, whether the Spe
4、cification is to be used either domestically or internationally. NOTE The users attention is called to the possibility that compliance with this standard may require use of an invention covered by patent rights. By publication of this standard, no position is taken with respect to the validity of an
5、y such claim(s) or of any patent rights in connection therewith. If a patent holder has filed a statement of willingness to grant a license under these rights on reasonable and nondiscriminatory terms and conditions to applicants desiring to obtain such a license, then details may be obtained from t
6、he standards developer Neither the standards developer nor ANSI is responsible for identifying patents for which a license may be required by an American National Standard or for conducting inquiries into the legal validity or scope of those patents that are brought to their attention.This EIA Speci
7、fication is considered to have International Standardization implications, but the International Electrotechnical Commission activity has not progressed to the point where a valid comparison between the EIA Specification and the IEC document can be made. This Specification does not purport to addres
8、s all safety problems associated with its use or all applicable regulatory requirements. It is the responsibility of the user of this Specification to establish appropriate safety and health practices and to determine the applicability of regulatory limitations before its use. (From Standards Propos
9、al No. PN-5383, formulated under the cognizance of the CE-2.2 Committee on RF Connectors and Rigid Coax Connectors and previously published in EIA- RS-200A) Published by Electronic Components Industry Association 2018 EIA Standards & Technology Department 2214 Rock Hill Road, Suite 265 Herndon, VA 2
10、0170 PLEASE ! DONT VIOLATE THE LAW! This document is copyrighted by the ECIA and may not be reproduced without permission. Organizations may obtain permission to reproduce a limited number of copies through entering into a license agreement. For information, contact: IHS Markit 15 Inverness Way East
11、 Englewood, CO 80112-5704 or call USA and Canada (1-877-413-5186), International (303-397-7956) (This page left blank) i CONTENTS Clause Page 1. Introduction . 11.1 Scope . 12. Size 12.1 Definitions of Terminology 12.2 Out-of-Roundness . 12.3 Mean Wall Thickness . 12.4 Tolerances . 12.5 Wall Thickne
12、ss 12.6 Dimensions . 13. Frequency Range 24. Bow . 25. Material and Workmanship. 25.1 Workmanship: . 26. EIA Type Designation 36.1 Marking . 37. Packaging And Packing 3LIST OF TABLES Table Page Table 1 Dimensions, Tolerances, And Frequency Range For Rigid Circular Waveguides . 4ii LIST OF FIGURES Fi
13、gure Page Figure 1 0.875 Flange 6Figure 2 1.625 Flange 7Figure 3 2.125 Flange 8Figure 4 3.00 Flange 9Figure 5 4.00 Flange 10Figure 6 5.00 Flange 11Figure 7 6.25 Flange 12Figure 8 7.1875 Flange 13Figure 9 8.00 Flange 14Figure 10 9.1875 Flange 15EIA-200-B Page 1 Circular Waveguides (From EIA Standards
14、 Proposal No. PN-5383, formulated under the cognizance of the EIA CE-2.2 Committee on Circular Waveguides, and previously published as RS-200A) 1. Introduction 1.1 Scope This standard pertains exclusively to circular waveguide and their flanges. This standard does not apply to any semi-flexible tran
15、smission lines or connectors. It is the intent of this standard to provide complete mechanical interchangeability for all lines. 2. Size 2.1 Definitions of Terminology Diameter, Mean- The mean diameter (I.D. and O.D.) is the average, at one cross section, of the maximum and minimum measured diameter
16、s usually found at, or very close to, 90 from each other. Mean I.D. = .2.2 Out-of-Roundness Out-of-roundness of the inside of the waveguide is the total difference, found at any-one cross-section, between the individual maximum and minimum Inside Diameters which usually occurs at, or about, 90 from
17、each other. Out-of-roundness is not expressed as plus and minus. Out-of-Roundness = Max. I.D - Min. I.D. 2.3 Mean Wall Thickness Mean Wall thickness is defined as one-half the difference between corresponding mean inside and outside diameters at any cross section perpendicular to the longitudinal ax
18、is. 2.4 Tolerances The tolerance on mean diameters and the out-of-roundness are specified in Table . 2.5 Wall Thickness The actual wall thickness as measured at any point around the periphery shall not deviate from the mean wall thickness at that cross section by more than 10%. 2.6 Dimensions Dimens
19、ions and tolerances for the lines are specified in Table 1. Dimensions and tolerances for the connectors are shown on Figure 1 thru Figure 10. EIA-200-B Page 2 3. Frequency Range a. Recommended frequency range for each size is specified in Table b. Specified frequency range assumes operation in the
20、dominant (TE11) mode or in the circular electric (TE01) mode. c. Each specified frequency range for the TE01 mode operation is within 1.21 times the cutoff frequency for the TE01 mode and 0.91 times the cutoff frequency of the TE02 mode. Each specified frequency range for the TE11 mode operation is
21、within 1.15 times the cutoff frequency for the TE11 mode and 0.95 times the cutoff frequency of the TE21 mode. d. To permit selection of optimum waveguide sizes, two overlapping series are specified. 4. Bow a. Bow is the departure from a straight longitudinal line connecting any two points two feet
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