Continously loaded linear antennas.

Çelik, Halil


ERTEPINAR, A (1991-01-01)
The theory of finite elasticity is used to investigate the behaviour of cylindrical tubes made of compressible, hyperelastic materials and subjected to the simultaneous action of spin and radial tractions on the outer curved surface while the inner curved surface is perfectly bonded to a rigid shaft. The second order quasi-linear ordinary differential equation governing the system is solved numerically by the method of adjoints. The effects of the material compressibility, the second strain invariant depe...
Circumferential Traveling Wave Slot Array on Cylindrical Substrate Integrated Waveguide (CSIW)
Bayraktar, Omer; Aydın Çivi, Hatice Özlem (Institute of Electrical and Electronics Engineers (IEEE), 2014-07-01)
Traveling wave slot array on cylindrical substrate integrated waveguide (CSIW) is designed, fabricated and measured at K-band. CSIW is formed by wrapping the substrate integrated waveguide (SIW) around the cylinder in the circumferential direction. 16 element longitudinal slot array on the broad wall of single CSIW is designed by the Elliot's design procedure. The spacings between the slot elements are determined to reduce the half power beam width (HPBW) and to obtain good matching at 25 GHz. A 4 x 16 slot...
ERTEPINAR, A (Elsevier BV, 1991-01-01)
The finite strain behavior of cylindrical tubes, made of a polynomial compressible material and subjected to the simultaneous action of constant spin and uniform external circumferential shear, is investigated using the theory of finite elasticity. The inner surface of the tube is assumed to be perfectly bonded to a rigid shaft. The governing quasi-linear system of two ordinary differential equations is solved using a shooting method. Numerical results are generated to analyze, qualitatively, the effects...
Continious sulfur dioxide measuring instrument with direct electrical output.
Bodur, Mehmet; Department of Electrical Engineering (1981)
Circumferentially cracked bimaterial hollow cylinder under mechanical and transient thermal loading
Kadıoğlu, Fevzi Suat (Informa UK Limited, 2006-12-01)
The analytical solution for the problem of a circumferential inner surface crack in an elastic, infinitely long composite hollow cylinder, made of two concentric perfectly bonded transversely isotropic cylinders is considered. Uniform axial loading and thermal loading in the form of a sudden cooling on the inner boundary are considered. Out of 10 material parameters involved, two bimaterial parameters and three material parameters for each layer upon which the stress intensity factor depends under uniform l...
Citation Formats
H. Çelik, “Continously loaded linear antennas.,” Middle East Technical University, 1992.