Download or read book The Logarithmically Periodic Rhombic Antenna written by Frank B Harris (Jr) and published by . This book was released on 1962 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: The possibility of using a logarithmically periodic, concentric, rhombic antenna array for ionospheric sounding in the HF region is considered, both theoretically and experimentally. In particular, the feasibility of simultaneous excitation of n elements within a larger, m-element array is examined in detail. For a logarithmically periodic array, the group of any n neighboring elements forms a module whose properties are identical with those of any other similar module, except for a scale factor in frequency. A mathematical representation is developed which describes the behavior of such an n-element module independently of rhombic angle and height-to-leg length ratio. The important parameters of the calculation are the number and relative sizes of the elements within the module. It is shown, on the basis of the theory, that a module of three elements having a size ratio of 1.5 to 1 between successive elements should give a considerably lower side -lobe level over a larger frequency range than is typical of the single-element rhombic antenna. A design procedure is described for arrays intended for operation over large frequency ranges. This procedure is applied to a specific case, leading to a five-element, three-module array for operation over the range 4-36 Mc. The results of radiation pattern measurements on two different antenna models are presented. (Author).

Download or read book Scaled model Experimental Verification of Computed Performance of a Single Rhombic Antenna and an Array of Two Rhombic Antennas written by L. L. Proctor and published by . This book was released on 1967 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Study of Possibilities for Improving Space Utilization and Performance of Rhombic Antennas written by Angel M. Martin-Caloto and published by . This book was released on 1959 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1970 with total page 1338 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigation of Microwave Printed circuit Log periodic Dipole PCLPD Antennas written by Agus Mulyanto and published by . This book was released on 1982 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Planner s Guide to Facilities Layout and Design for the Defense Communications System Physical Plant written by and published by . This book was released on 1985 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government wide Index to Federal Research Development Reports written by and published by . This book was released on 1966-05 with total page 778 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Broadband Logarithmically Periodic Antenna Structures written by R. H. DUHAMEL and published by . This book was released on 1957 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Computed Radiation Patterns of Log periodic Antennas Over Lossy Plane Ground written by Mark T. Ma and published by . This book was released on 1967 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Four different orientations of a log-periodic dipole array of 11 elements over several types of ground are studied. With the xy-plane always treated as the flat ground, they are called 1) the x-array when dipole elements are parallel with the x-axis and the array axis is parallel with they-axis, 2) the y-array when dipoles are parallel with the y-axis and the array axis is coincident with the z-axis, 3) the z-array when dipoles are parallel with the z-axis and the array axis is parallel with the y-acix, and 4) the z=Ay=array when dipoles are parallel with the x-axis and the array axis makes an angle with the z-axis.

Download or read book Rhombic Antenna Design written by Augustus Everdell Harper and published by . This book was released on 1941 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Handbook of Antenna Design written by Alan W. Rudge and published by IET. This book was released on 1982 with total page 972 pages. Available in PDF, EPUB and Kindle. Book excerpt: Good,No Highlights,No Markup,all pages are intact, Slight Shelfwear,may have the corners slightly dented, may have slight color changes/slightly damaged spine.

Download or read book The Communications Facility Design Handbook written by Jerry C. Whitaker and published by CRC Press. This book was released on 2018-10-08 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: The responsibilities of the system engineer are many and varied, especially as they relate to facility design and construction. Successful execution of these responsibilities requires an understanding of the underlying technologies, the applicable quality standards, and the proper methods for achieving them. The Communications Facility Design Handbook is dedicated to providing and supporting that understanding. It examines the tasks and functions of the system engineer and establishes a foundation for designing, installing, operating, and maintaining audio, video, computer, and radio frequency systems and facilities. Unique in its scope and its approach, The Communications Facility Design Handbook describes the important steps required to take a project from basic design to installation and completion. From the fundamental principles of electronics to details on wiring, from budget analysis to safety considerations, this is your one-stop reference for planning, building, renovating, and operating all types of electronics facilities.

Download or read book Thesaurus of Engineering and Scientific Terms written by Engineers Joint Council and published by . This book was released on 1967 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Electronic Communications Systems written by Wayne Tomasi and published by Prentice Hall. This book was released on 2004 with total page 1190 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book "continues to provide a moden comprehensive coverage of electronic communications systems. It begins by introducing basic systems and concepts and moves on to today's technologies : digital, optical fiber, microwave, satellite, and data and cellular telephone communications systems." - back cover.

Download or read book Missile Techician 3 2 written by United States. Naval Education and Training Command and published by . This book was released on 1979 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Telecommunications written by and published by . This book was released on 1963 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: