Optimization of a Dual-Band Helical Antenna for TTC Applications at S Band

A compact dual-band equatorial helical antenna for TTC (telemetry, tracking, and control) applications in satellites is presented. The network feeding system of the antenna was also designed, analyzed, and measured to achieve circular polarization. A Moment Method code was used to evaluate the performance of both the helical antenna and the feed-circuit network. The whole system was optimized to fulfill rather strict specifications, while maintaining quite small size and weight. A prototype of the helical antenna was fabricated and measured. The design process of the geometrical model, and comparisons between the predicted and measured values, are presented. The results led to the conclusion that it is a very suitable antenna for operating at S band.

[1]  P. Kabacik,et al.  The omnidirectional coverage of low-profile TTC antennas onboard minispacecraft , 2005, 2005 IEEE Antennas and Propagation Society International Symposium.

[2]  G. Crone,et al.  Analysis of the S-band communication link between the automated transfer vehicle and the data relay satellites in the presence of the space station , 2002 .

[3]  Shyh-Jong Chung,et al.  A Miniature Quadrifilar Helix Antenna for Global Positioning Satellite Reception , 2009, IEEE Transactions on Antennas and Propagation.

[4]  Carlos Delgado,et al.  Numerical approach for the fast analysis of radiation patterns of antennas in complex environments , 2010, 2010 International Workshop on Antenna Technology (iWAT).

[5]  R. Mittra,et al.  Application of the Characteristic Basis Function Method Utilizing a Class of Basis and Testing Functions Defined on NURBS Patches , 2008, IEEE Transactions on Antennas and Propagation.

[6]  Neil Genzlinger.  A. and Q , 2006 .

[7]  M. Cátedra,et al.  An Iterative Solution for Electrically Large Problems Combining the Characteristic Basis Function Method and the Multilevel Fast Multipole Algorithm , 2008, IEEE Transactions on Antennas and Propagation.

[8]  M. Cátedra,et al.  Combining the moment method with geometrical modelling by NURBS surfaces and Bezier patches , 1994 .

[9]  P. Kabacik,et al.  TTC patch antennas made in a conformal form with small radius , 2006, 2006 First European Conference on Antennas and Propagation.

[10]  P. Kabacik,et al.  Onto optimization of TTC patch antennas placed on minispacecraft , 2006, 2006 First European Conference on Antennas and Propagation.

[11]  Qi Wang,et al.  A novel multi-frequency quadrifilar helix antenna , 2005, 2005 IEEE Antennas and Propagation Society International Symposium.

[12]  R. Mittra,et al.  Efficient Multilevel Approach for the Generation of Characteristic Basis Functions for Large Scatters , 2008, IEEE Transactions on Antennas and Propagation.

[13]  W. Marsden.  I and J , 2012 .