**Acknowledgements**

*UWB Technology - Circuits and Systems*

*Block diagram of separated architecture CC (a) and common-leg architecture (b).*

**Figure 23.**

**38**

**5. Conclusions**

**Figure 24.**

UWB microwave circuits play a vital role in modern electronic systems for Aerospace, defence and Security applications. They are inserted to appropriately

*.*

*Photograph of a realized CC operating around 10 GHz. Size is 15 mm2*

Patrick E. Longhi would like to thank friends and colleagues at Elettronica Group in Rome (ITA) for the many fruitful and insightful technical discussions during his time spent in the company as a Microwave Engineer.
