Lange Coupler References
Updated 27 February 2003
    
    
  1. Bharj, S.S., "Cal-Aided Lange Coupler Synthesis," Microwave Journal, Jan 1983, pp. 122-123, and Mar 1983, pp. 112-114.
    
    
  2. Ho, C. and L. Moser, "Symmetrical Coupler Reduces Phase Error," Microwaves, Apr 1981, pp. 82-84.
    
    
  3. Ho, C. and F. Wong, "An Improved Layout for Lange Couplers," Microwave Journal, Jun 1992, pp. 112-115.
    
    
  4. Jackson, C.M., "Introduction to Lange Coupler Design," Microwave Journal, Oct 1989, pp. 145-149.
    
    
  5. Lange, J., "Interdigitated Stripline Quadrature Coupler," IEEE Transactions on Microwave Theory and Techniques, Dec 1969, pp. 1150-1151.
    
    
  6. Louw, H.J. and J.R. Nortier, "Cascaded Lange Couplers," Microwave Journal, Nov 1989, pp. 179-180.
    
    
  7. Osmani, R.M., "Synthesis of Lange Couplers," IEEE Transactions on Microwave Theory and Techniques, Vol. MTT-29, No. 2, Feb 1981, pp. 168-170.
    
    
  8. Ou, W.P., "Design Equations for an Interdigitated Directional Coupler," IEEE Transactions on Microwave Theory and Techniques, Feb 1975, pp. 253-255.
    
    
  9. Paolino, D.D., "Design More Accurate Interdigitated Couplers," Microwaves, May 1976, pp. 34-38.
    
    
  10. Tserng, H.Q. and S.R. Nelson, "5-18 GHz, 3 dB Hybrid Coupler," Electronics Letters, Vol. 17, No. 7, 2 Apr 1981, pp. 258-259.
    
    
  11. Waugh, R.W., "Sensitivity Analysis of the Lange Coupler," Microwave Journal, Nov 1989, pp. 121-129.
    
    
  12. Waugh, R. and D. LaComb, "Unfolding the Lange Coupler," IEEE Transactions on Microwave Theory and Techniques, Nov 1977, pp. 777-779.
           If you have any additional references on this
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