Engineering topics
Fortinberry, Jarrod
Publications and source records attributed to Fortinberry, Jarrod.
Brushed DC Motor Noise Above 1 GHz: 2018 DoD E3 Review
Agenda: Marshall EMI (Electromagnetic Interference) Test Facility (METF) Overview; Brushed DC Motor Overview; Literature Review; System Level Radiated Emissions; Component Radiated Emissions; Additional Data with COTS Hardware; Conclusion.
Measurement of Antenna Bore-Sight Gain
The absolute or free-field gain of a simple antenna can be approximated using standard antenna theory formulae or for a more accurate prediction, numerical methods may be employed to solve for antenna parameters including gain. Both of these methods will result in relatively reasonable estimates but in practice antenna gain is usually verified and documented via measurements and calibration. In this paper, a relatively simple and low-cost, yet effective means of determining the bore-sight free-field gain of a VHF/UHF antenna is proposed by using the Brewster angle relationship.
Measurement of Antenna Bore-Sight Gain
The absolute or free-field gain of a simple antenna can be approximated using standard antenna theory formulae or for a more accurate prediction, numerical methods may be employed to solve for antenna parameters including gain. Both of these methods will result in relatively reasonable estimates but in practice antenna gain is usually verified and documented via measurements and calibration. In this paper, a relatively simple and low-cost, yet effective means of determining the bore-sight free-field gain of a VHF/UHF antenna is proposed by using the Brewster angle relationship.