Accession Number : ADA102622


Title :   APACK, A Combined Antenna and Propagation Model.


Descriptive Note : Final rept.,


Corporate Author : IIT RESEARCH INST ANNAPOLIS MD


Personal Author(s) : Chang,Sooyoung ; Maddocks,Hugh C


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a102622.pdf


Report Date : Jul 1981


Pagination or Media Count : 278


Abstract : Equations for predicting the electric far-field strengths, directive gains, power gains, and transmission loss for 16 types of linear antennas are presented along with an interview of the methods used to develop the equations. The effects of the radio surface wave including diffraction beyond the horizon as well as the direct and ground reflected waves are included. The equations were programmed in a set of computer subroutines termed the Accessible Antenna package (PACK). These subroutines may be called by other programs in order to compute antenna and propagation effects at frequencies between 150 kHz and 500 MHz over lossy earth. (Author)


Descriptors :   *LINEAR ARRAYS , *ANTENNA RADIATION PATTERNS , *ANTENNA ARRAYS , POWER LEVELS , HIGH FREQUENCY , COMPUTATIONS , COMPUTER PROGRAMMING , FAR FIELD , GAIN , SUBROUTINES , GROUND WAVES(ELECTROMAGNETIC) , SKY WAVES , ELECTROMAGNETIC WAVE REFLECTIONS , TRANSMISSION LOSS , ULTRAHIGH FREQUENCY , VERY HIGH FREQUENCY , DIPOLE ANTENNAS , DIRECTIONAL ANTENNAS


Subject Categories : Electricity and Magnetism
      Radiofrequency Wave Propagation


Distribution Statement : APPROVED FOR PUBLIC RELEASE