1. and Microstrip lines and slot lines, 2nd ed., Artech House, Norwood, MA, 1996.
2. Stripline Circuit Design, Artech House, Norwood, MA, 1974.
3. and Microwave filters,impedance-matching networks,and coupling structures, 2nd ed., Artech House, Norwood, MA, 1985.
4. ADS manual, Agilent Technologies, Santa Rosa, CA, 2000.