Receiving Polarization Agile Active Antenna Based on Injection Locked Harmonic Self Oscillating Mixers

A polarization agile active antenna with phase shifter elements based on injection locked third harmonic self oscillating mixers is presented. This phase shifting topology provides the double functionality of continuous range phase shifter and downconverter. The phase shift value introduced by each circuit can be easily tuned through a DC voltage within a theoretical continuous range of 450° . The behavior of the isolated phase shifter circuit is studied, both as a function of the control voltage and versus frequency, through harmonic balance and envelope transient simulations. The polarization tuning performance of the complete active antenna is simulated, analyzing the impact of the operating parameters of the phase shifter on the overall behavior. A receiving polarization agile antenna with an input frequency band centered at 11.25 GHz and an output frequency band centered at 1.5 GHz has been manufactured for the experimental validation of the simulated results. A continuous range of polarization tuning has been observed, including two orthogonal linear polarizations along with left hand and right hand circular polarization.

[1]  P. M. Haskins,et al.  Phase control in injection locked microstrip active antennas , 1994, 1994 IEEE MTT-S International Microwave Symposium Digest (Cat. No.94CH3389-4).

[2]  L.F. Herran,et al.  Design and analysis of a microwave large-range variable phase-shifter based on an injection-locked harmonic self-oscillating mixer , 2006, IEEE Microwave and Wireless Components Letters.

[3]  P. M. Haskins,et al.  Varactor-diode loaded passive polarisation-agile patch antenna , 1994 .

[4]  L.F. Herran,et al.  Nonlinear optimization tools for the design of microwave high-conversion gain harmonic self-oscillating mixers , 2006, IEEE Microwave and Wireless Components Letters.

[5]  J. Row,et al.  Single-Fed Microstrip Patch Antenna With Switchable Polarization , 2008, IEEE Transactions on Antennas and Propagation.

[6]  S. Ver Hoeye,et al.  Analysis of noise effects on the nonlinear dynamics of synchronized oscillators , 2001, IEEE Microwave and Wireless Components Letters.

[7]  Kai Chang,et al.  A Novel Reconfigurable Microstrip Antenna With Switchable Circular Polarization , 2007, IEEE Antennas and Wireless Propagation Letters.

[8]  A.M.D. Turkmani,et al.  An experimental evaluation of the performance of two-branch space and polarization diversity schemes at 1800 MHz , 1995 .

[9]  G. Leon,et al.  Transmitting polarisation agile antenna based on synchronised oscillators , 2009, 2009 IEEE Antennas and Propagation Society International Symposium.

[10]  J.-E. Berg,et al.  Base station polarization diversity reception in macrocellular systems at 1800 MHz , 1996, Proceedings of Vehicular Technology Conference - VTC.

[11]  Y. Kim,et al.  A reconfigurable microstrip antenna for switchable polarization , 2004, IEEE Microwave and Wireless Components Letters.

[12]  A. Suarez,et al.  New nonlinear design tools for self-oscillating mixers , 2001, IEEE Microwave and Wireless Components Letters.

[13]  L.F. Herran,et al.  Nonlinear Optimization of Wide-Band Harmonic Self-Oscillating Mixers , 2008, IEEE Microwave and Wireless Components Letters.

[14]  Tah-Hsiung Chu,et al.  A beam-scanning and polarization-agile antenna array using mutually coupled oscillating doublers , 2005, IEEE Transactions on Antennas and Propagation.

[15]  Constantine A. Balanis,et al.  Antenna Theory: Analysis and Design , 1982 .

[16]  Susana Loredo,et al.  Polarization diversity in indoor scenarios: an experimental study at 1.8 and 2.5 GHz , 2002, The 13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications.