**6. Conclusion**

Conductive and dielectric liquids offer viable options for achieving microwave circuits' reconfigurability. Both types of fluids can alter the wave propagation

**Figure 15.**

*Liquid metal-based tuner simulated and measured impedance coverage at different frequencies.*

characteristics in guiding structures by injecting and removing the fluids from cavities in the close vicinity of conventional conductors. Conducting fluids offer the additional capability of reconfiguring the path of a guided wave by changing the shape of the conductors. The principles behind these reconfiguration techniques were presented and discussed. The design and realization of reconfigurable microwave impedance tuners using dielectric and conductive fluidics in LTCC technology were used to detail possible applications of the introduced reconfiguration. The results presented in this chapter, and those reported by others in the open literature, are promising and will support further research into this area.

*Fluidics for Reconfigurable Microwave Components DOI: http://dx.doi.org/10.5772/intechopen.104857*
