Evaluation of CWMS (continuous-wave measurement system) single-wire dipole antenna

Technical Report · Mon Nov 30 04:00:00 EST 1987

OSTI ID:5792798

Breakall, J K; Christman, A M

The Numerical Electromagnetics Code (NEC) was used to model a ''single-wire horizontal dipole antenna'' used with the FCDNA continuous-wave measurement system (CWMS). Line drawings and construction information were supplied to LLNL staff by FCDNA and EGG personnel, and NEC models were developed accordingly. Data were obtained from NEC describing all components of the electric and magnetic fields at nine different field-strength measurement points, as well as the input impedance at the antenna feed-point. Thirteen frequencies were used in the model, ranging all the way from 10 kHz to 100 MHz. In addition, the antenna was examined in two configurations, with and without a coaxial transmission line which extended from the feed-point balun to ground level. 16 figs., 46 tabs.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5792798
• Report Number(s): UCID-21247; ON: DE88003979
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420800* -- Engineering-- Electronic Circuits & Devices-- (-1989)
99 GENERAL AND MISCELLANEOUS
990220 -- Computers
Computerized Models
& Computer Programs-- (1987-1989)
ANTENNAS
COMPUTER CODES
DATA
DIPOLES
ELECTRIC IMPEDANCE
ELECTRICAL EQUIPMENT
ELECTROMAGNETIC FIELDS
EQUIPMENT
FREQUENCY RANGE
IMPEDANCE
INFORMATION
KHZ RANGE
KHZ RANGE 01-100
KHZ RANGE 100-1000
MATHEMATICAL MODELS
MHZ RANGE
MHZ RANGE 01-100
MULTIPOLES
N CODES
NUMERICAL DATA
TABLES
WIRES