Substrates made of high performance ceramic materials E-11, E-11C, E-20 and E-37 are very useful for RF and microwave circuits due to the low loss in the UHF and microwave frequency range. Both sides can be screen printed by arbitrary silver pattern.
Permittivity: εr = 11, 20 and 37
Choose E-11 for better Q-factor or E-11C for zero temperature coefficient.
Dimensions: up to 120 mm, thickness: up to 8 mm
Substrate with silver pattern and 0.8 mm holes
Supports for dielectric resonators