- Microstip Line
David. M. Pozar, microwave engineering, john wiley and son
inc. 2005 pp: 143-145
- Qarter wave transformer
David. M. Pozar, microwave engineering, john wiley and son
inc. 2005 pp: 240 New Jersey US
- Jari-Jari Microstrip Circular Patch
antenna theory analysis and design, constantine A.
Balanis,3rd ed. john wiley n sons inc. 2005 New Jersey US pp. 846-847
