Abstract
Equations for boresight cross polarization and isolation of axisymmetric and offset antennas in the presence of surface errors are derived in terms of numerically computable integrals. Computations revealed that 1) for root mean square (rms) error <λ/4 cross polarization increases monotonically with increasing rms error; and 2) maximum cross polarization occurs when the correlation diameter is 0.5 D for axisymmetric antennas (0.8 D for offset antennas). For rms error >λ/4 boresight cross polarization remains almost constant. Furthermore, results revealed that for given correlation diameter and rms error, axisymmetric antennas offer better boresight isolation in comparison with offset antennas having the same polarization efficiency.
| Original language | English |
|---|---|
| Pages (from-to) | 662-665 |
| Number of pages | 4 |
| Journal | IEEE Transactions on Antennas and Propagation |
| Volume | 31 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 1983 |
Fingerprint
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Condensed Matter Physics
- Computer Networks and Communications
Cite this
Axial Cross Polarization in Reflector Antennas with Surface Errors of Large Correlation Diameter. / Jervase, Joseph A.; Ghobrial, Samir I.
In: IEEE Transactions on Antennas and Propagation, Vol. 31, No. 4, 1983, p. 662-665.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Axial Cross Polarization in Reflector Antennas with Surface Errors of Large Correlation Diameter
AU - Jervase, Joseph A.
AU - Ghobrial, Samir I.
PY - 1983
Y1 - 1983
N2 - Equations for boresight cross polarization and isolation of axisymmetric and offset antennas in the presence of surface errors are derived in terms of numerically computable integrals. Computations revealed that 1) for root mean square (rms) error <λ/4 cross polarization increases monotonically with increasing rms error; and 2) maximum cross polarization occurs when the correlation diameter is 0.5 D for axisymmetric antennas (0.8 D for offset antennas). For rms error >λ/4 boresight cross polarization remains almost constant. Furthermore, results revealed that for given correlation diameter and rms error, axisymmetric antennas offer better boresight isolation in comparison with offset antennas having the same polarization efficiency.
AB - Equations for boresight cross polarization and isolation of axisymmetric and offset antennas in the presence of surface errors are derived in terms of numerically computable integrals. Computations revealed that 1) for root mean square (rms) error <λ/4 cross polarization increases monotonically with increasing rms error; and 2) maximum cross polarization occurs when the correlation diameter is 0.5 D for axisymmetric antennas (0.8 D for offset antennas). For rms error >λ/4 boresight cross polarization remains almost constant. Furthermore, results revealed that for given correlation diameter and rms error, axisymmetric antennas offer better boresight isolation in comparison with offset antennas having the same polarization efficiency.
UR - http://www.scopus.com/inward/record.url?scp=0020778122&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0020778122&partnerID=8YFLogxK
U2 - 10.1109/TAP.1983.1143107
DO - 10.1109/TAP.1983.1143107
M3 - Article
VL - 31
SP - 662
EP - 665
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
SN - 0018-926X
IS - 4
ER -