NAVY MIL-A-24233 B-1989 ANTENNA AS-1735( ) SRC《AS-1735( ) SRC天线》.pdf

1、r E O I INCH-POUND I MIL-A-24233B ( EC) 31 March 1989 SUPERSEDING . 7 January 1977 MIL-A-24233A MILITARY SPECIFICATION ANTENNA, AS-1735( )/SRC This specification is approved for use by the Space and Naval Warfare Systems Command, Department of the Navy, and is available for use by all Departments an

2、d Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers the ultra high frequency (UHF) Antenna, AS-1735( )/sRc, hereinafter referred to as the antenna, a vertically polarized, four element array, providing omnidirectional azimuth coverage over a frequency range from 22

3、5 megahertz (MHz) to 400 MHz when mounted around a central supporting mast ranging from 101.6 millimeters (mm) (4 inches (in.) to 381.1 mm (15 in.) in diameter. 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications, standards, and handbooks. The fol lowing specifications, standards,

4、 and handbook form a part of this specification to the extent specified herein. Unless otherwise specified, the issues of these documents shall be those listed in the issue of the Department of Defense Index of Specifications and Standards (DoDISS) and supplement thereto, cited in the solicitation.

5、I 1 Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, Space And Naval Warfare Systems Command, SPAWAR PMW 152, Washington, DC 20363-5100, by using the self-addressed Standardization Doc

6、ument Improvement Proposal (DD Form 1426) appearing at the end of this document, or by letter. AMSC N/A FSC 5985 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. F . THIS DOCUMENT CONTAINS 2! PAGES. , _ - _=_ /=- 7 - I- - , - _ Licensed by Information Handling Servic

7、esProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SPECIFICATIONS MIL ITARY MI L-s-90 1 MIL-E-2036 MIL-C-5541 MIL-B-007883 MIL-W-8604 MIL-P-15024/5 MI L-E-16400G MIL-E-17555 STANDARDS MILITARY MIL-STD-108 MI L-STO- 109 MIL-STD-167-1 MIL-STD-454 MIL-ST

8、D-781 MIL-STD-810C MI L-STD-965 MIL-STD-1310 MIL-A-24233B( EC) Shock Tests, H.I. (High-Impact); Shipboard Machinery, Equipment And Systems, Requi rements For Enclosures For Electric And Electronic Equipment Chemical Conversion Coatings On Al uminum And Aluminum Alloys Brazing Of Steels, Copper, Copp

9、er Alloys, Nickel Al 1 oys, Al umi num And Al umi num Al 1 oys Welding, Fusion; Aluminum Alloys; Process And Performance Of P1 ates, Identification Electronic, Interior Communications And Navigation Equipment, Naval Ship And Shore: General Specification For Electronic And Electrical Equipment, Acces

10、sories, Provisioned Items (Repair Parts): Packaging Of Definitions Of And Basic Requirements For Enclosures For Electric And Electronic Equipment Quality Assurance Terms And Definitions Mechanical Vibrations Of Shipboard Equipment (Type I - Environmental And Type II - Internally Excited) Standard Ge

11、neral Requirements For Electronic Equi pmen t Re1 i abi 1 i ty Testi ng For Engi neeri ng Development, Qualification And Production Envi ronmental Test Methods Parts Control Program Shipboard Bonding, Grounding, And Other Techniques For Electromagnetic Compatibility And Safety I 2 Licensed by Inform

12、ation Handling ServicesProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-HANDBOOK MIL-STD-2000 MS 91610 MILITARY MIL-HDBK-781 Standard Requirements For SoTdered Electrical And Electronic As-sembl ies Connector, Receptacle, Electrical, Series LC, UG-352

13、/U Reliability Test Methods, Plans, And Envi ronments For Engi nneri ng Deve1 opment, Qualification, And Production 2.1.2 Other Government drawings and publications. The following other Government drawing and publications form a part of this specification to the extent specified herein. Unless other

14、wise specified, the issues shall be those in effect on the date of the solicitation. DRAWING SPACE AND NAVAL WARFARE SYSTEMS COMMAND (SPAWAR) NAVELEX 28687-0109350 AS-l735/SRC VHF Antenna Fabrication Plan PUBLICATIONS NAVAL SEA SYSTEMS COMMAND (NAVSEA) DDS 072-1 Shock Design Values TE000-AB-GTP-010

15、Parts Application, And Reliability Information Manual For Navy Electronic Equipment (Copies of specifications, standards, handbooks, drawings, and pub1 ications required by contractors in connection with specific acquisition functions should be obtained from the contracting activity or as directed b

16、y the contracting officer.) specification to the extent specified herein. issues of the documents which are DoD adopted shall be those listed in the issue of the DoDISS specified in the solicitation. of documents not listed in the DoDISS shall be the issue of the nongovernment documents which is cur

17、rent on the date of the solicitation. 2.2 Other publications. The following document forms a part of this Unless otherwise specified, the Unless otherwise specified, the issues 3 Licensed by Information Handling ServicesProvided by IHSNot for ResaleNo reproduction or networking permitted without lic

18、ense from IHS-,-,-MIL-A-24233B( EC) (Application for copies should be addressed to American National Standards Institute (ANSI), 1430 Broadway, New York, NY 10018.) AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI ) ANSI C-95-2-82 Radio Frequency Radiation Hazard Warning Symbol (Nongovernment standards a

19、nd other pub1 ications are normally available from the organizations which prepare or which distri bute the documents. These documents also may be available in or through libraries or other informational services.) I 2.3 Order of precedence. In the event of a conflict between the text of this specif

20、ication and the references cited herein (except for associated detail specifications, specification sheets, or MS standards), the text of this specification shall take precedence. Nothing in this specification, however, shall supersede applicable laws and regulations unless a specific exemption has

21、been obtained. 3, REQUIREMENTS 3.1 General , The antenna shall be in accordance with MIL-E-16400G to the 3.1.1 First article, When specified in the contract or purchase order, a extent specT.fi-e6 herein. sample shall be subjected to first article inspection (see 4.4 and 6.3). 3.1,2 Government-furni

22、shed material (GFM), GFM, if any, including either Government-furnished information (Gk I) or Government-furnished equipment (GFE) , - shall be as specified in the contract. 3.2 Parts, materials, and processes. Parts, materials, and processes shall be in accordance with the Parts, materials, and pro

23、cesses paragraph of MIL-E-16400GY to the extent specified herein. 3.2.1 Parts, Selection of parts shall be in accordance with the Selection paragraph om-E-l64OOG, unless otherwise specified herein. 3.2.1.1 Parts control. The parts to be incorporated in the antenna shall be selected in accordance wit

24、h MIL-STD-965, Procedure I, except as otherwise specified herein, SPAWAR Drawing 28687-0109350 shall be used for guidance only. 3,2.1.2 Interchangeabi1i.t.y. Unless otherwise specified in the contract, antennas shall be interchangeable as specified in MIL-STD-454, Requirement 7, with corresponding i

25、 tems of the approved product base1 ine. 4 Licensed by Information Handling ServicesProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I 3.2.3.1 Painting. The paint system used for the antenna shall conform to the Adhesion and bl i Ster resi stance para

26、graph of MIL-E-16400G. 3.2.1.3 Derating. Temperature, power, voltage stress levels and ratios, as applicable, as. well as physical stresses, strengths, and processes shall be expl ici tly included in al 1 mean-time-between-failures (MTBF) estimates. The antenna design shall adhere to the derating gu

27、idelines specified in NAVSEA TE000-AB-GTP-010. 3.2.1.4 Connectors, radio frequency (RF). The RF input to the antenna shall be by a connector capable of mating with a Series LC connector (Type UG-352/U or comparable) in accordance with MS 91610. 3.2.2 Materials. Materials shall be as specified in 3.2

28、.2.1 and 3.2.2.2. 3.2.2.1 Selection of materials. Where metal-to-metal contact of dissimilar metals occurs, the selection of materials shall be in accordance with the Dissimilar metals paragraph of MIL-E-l6400G, for combinations of metals subject to immersion, splashing, or spray from sea water. 3.2

29、.2.2 Unacceptable materials. The antenna design shall comply with the Unacceptable material s paragraph of MIL-E-16400G. include the materials specified in a through g: The antenna design shall not a. F1 ammabl e or combustible material s b. Polychlorinated biphenyls c. Asbestos and asbestos compoun

30、ds d. Fragil e or brittle material s e. Beryllium and beryllium compounds unless so identified f. Lithium and lithium compounds unless specifically approved by the g. Chopped fiber procuring activity 3.2.3 Processes. Processes shall be as specified in 3.2.3.1 through 3.2.3.7. 3.2.3.2 Exposed equipme

31、nt (exterior use). The antenna system shall be in accordance with the Painting paragraph of MIL-E-16400G for exposed equipment (exterior use). 3.2.3.3 Castings. All castings shall be in accordance with the Castings paragraph of MIL-E-16400G. 3.2.3.4 Brazing. Brazing shall conform to MIL-B-007883, Gr

32、ade A joint qual i ti es. 5 Licensed by Information Handling ServicesProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I MIL-A-24233B (EC) 3.2.3.5 Corrosion protection and corrosion-resistant treatments. All aluminum structures and assemblies used in t

33、he antenna shall be protected from corrosion by a chemical conversion treatment in accordance with MIL-C-5541, Class 3. 3.2.3.6 Welds. Structural welding shall conform to MIL-W-8604, Class A. 3.23.7 Sol derin Sol deri ng procedures, and sol deri ng processes shall be i n accordance widb-2000. 3.3 De

34、sign. Antenna design shall be as specified in 3.3.1 through 3.3.5.3. 3.3.1 General design and construction. The UHF antenna shall be a single, interconnected unit consi sting of four individual dipole elements mounted at 90-degree intervals in a horiionta1 plane about a central support mast. interco

35、nnecting RF feed 1 ines and impedance matching sections shall permit simultaneous in-phase excitation of all four dipole elements from a single RF input connector. The antenna shall be adaptable for installation around a central support mast ranging between 101.6 mm (4 in.) to 304.8 mm (11 in.) in d

36、iameter and shall have adapter assemblies capable of allowing installations on masts sizes of . 304.8 mm (11 in.) to 381.0 mm (15 in.) in diameter. The input impedance shall be 50 ohms over the frequency range of 225 MHz to 400 MHz. Internal 3.3.2 Reliability design. The design of the antenna shall

37、minimize failures due to parameter change, including drift, as a function of manufacturing tolerances, environmental factors, and age. The factors specified in a through h shall be expl ici tly consi dered: placement, and machinery tolerances a . b. Normal variations in material quality, including f

38、inish tolerances c. d. Vibration levels, steady-state and transient e. Humidity f. Operational aging, particularly that of dielectric material from g. Nonoperational aging (storage life), shipping, and hand1 ing effect h. Salt spray and stack gas deposits, particularly those on insulators Normal man

39、ufacturi ng to1 erances i ncl udi ng sol deri ng , wi ri ng, Range of ambient temperatures and their rate of change exposure to sun, ozone, and stack gasses 3.3.3 Maintenance design. The antenna shall be constructed so that maintenance and repair can be made with a minimum of disturbance to other pa

40、rts. The antenna shall be readily demountable and interchangeable to provide ease of servicing, maintenance, and rep1 acement. 6 I Licensed by Information Handling ServicesProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-A-24233B 57 m 7779906 0027

41、538 8 = MIL-A-24233B( EC) 3.3.4 Safety. Safety criteria shall be in accordance with the Safety criter paragraph of MIL-E-16400G. . 3.3.5 Mechanical design. The mechanical design of the antenna shall conform to the Rounded corners and edges and Moisture pockets paragraphs of MIL-E-16400G. Antiseize c

42、ompounds or silicon lubricant shall be used on all bolted or screwed a joints, flanges, O-rings, and gaskets as appropriate, to facil itate the maintenance and serviceability of the antenna. 3.3.5.1 Enclosure. The degree of enclosure for the antenna shall be watertight as specified in MIL-STD-108. 3

43、.3.5.2 Weight and markings. Equipment weighing in excess of 15.88 kilograms (35 pounds) shall have the weight clearly marked on the external surface of the equipment and readily visible during installation and removal. The marking shall be as permanent as the normal life expectancy of the unit to wh

44、ich it is applied. Identification nameplates for the antenna shall be affixed in a conspicuous location. Nameplate format, material , lettering application, and information shall conform to MIL-P-15024/5. 3.-3.5.3 Magnetic materials. The antenna shall have a minimum magnetic signature in accordance

45、with the requirements specified in the Magnetic materials paragraph of MIL-E-16400G. within the limits specified herein, under conditions of intermittent or continuous - 3.4 Performance requirements. The antenna shall give re1 iable performance O operation during exposure to adverse conditions norma

46、lly encountered in Naval shipboard communication service. Mechanical and electrical ruggedness is of paramount importance for assurance of reliable performance. elevation angle over the 225-MHz to 400-MHz frequency band. of this antenna will be omnidirectional to within *2 decibels (dB) over the ent

47、ire 225-MHz to 400-MHz frequency range when mounted around a central support mast 101.6 mm (4 in.) to 279.4 mm (11 in.) in diameter and within *4 dB when mounted around a central support mast 381.00 mm (15 in.) in diameter. 3.4.1 Radiation pattern. The maximum radiation pattern shall occur at zero T

48、he horizontal pattern 3.4.2 Frequency range. The antenna and feed-system shall operate over the frequency range of 225 MHz to 400 MHz. 3.4.3 Polarization. The antenna shall transmit or receive vertically pol ari zed RF energy. 3.4.4 Gain. The antenna gain shall be 2.1 I0.25 dB above an isotropic lev

49、el. 7 Licensed by Information Handling ServicesProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-A-24233B (EC) 3.4.5 Power rating (RF). The antenna shall be capable of handling 2000 watts peak-envel ope Rb power over the frequency range. 3.4.6 Voltage standing wave ratio (VSWR). The impedance at the input to the antenna sha71 match the 50-ohm impedance of the input coaxial ca