A modified holographic technique for antenna measurements
- Resource Type
- Conference
- Authors
- Smith, David; Skobelev, Sergei P.; Leach, Mark P.
- Source
- 2008 8th International Symposium on Antennas, Propagation and EM Theory Antennas, Propagation and EM Theory, 2008. ISAPE 2008. 8th International Symposium on. :46-49 Nov, 2008
- Subject
- Fields, Waves and Electromagnetics
Aerospace
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Holography
Antenna measurements
Gain measurement
Time measurement
Microwave antennas
Electric variables measurement
Probes
Phase measurement
Horn antennas
Microwave measurements
Antenna measurement
antenna radiation patterns
holography
microwave antennas
microwave holography
microwave imaging
- Language
This work describes an extension to the use of indirect holographic techniques for antenna measurements. Previous versions of this work have been restricted to the measurement of high gain antennas without reducing sample spacing and increasing measurement times. This work describes a technique whereby using both sum and difference signals from the complex near field and the reference signal cancellation of the unwanted term in the Fourier domain is achieved enabling measurements to be made on medium gain antennas. Measured results are compared to simulation results for a small pyramidal horn antenna and are shown to provide good agreement.