| Filter Topologies |
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Cavity Filters
These TEM mode filters consist of inductively coupled short circuited stub resonators. Cavity filters are high Q structures for high selectivity, with very low passband insertion loss, which is important for receiver front end or high power transmit applications. |
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Ceramic Filters
Spectrum Microwave integrates Low Pass Filters into the designs for Ultimate Rejection Optimization. A Temperature Stabilizing Sponge can be utilized for harsh environments. |
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Lumped Elements
Lumped element filters consist of discrete capacitors and inductors soldered to a substrate in various schematic configurations. These compact designs are particularly suitable for applications where size is critical. |
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Tubular Filters
Spectrum Microwave tubular filters provide relatively high unloaded Q’s in a moderate package size. Due to their mechanical configuration, tubular filters have inherently broad stopbands with very high attenuation levels. |
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Waveguide Filters
Waveguide bandpass filters consist of half wavelength resonant cavities coupled by capacitive or inductive irises. These extremely high Q structures provide very low passband loss and steep attenuation skirts. |
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Suspended Substrate
Suspended substrate have an increase is unloaded Q which results in lower passband loss than conventional stripline filters. In addition, the lack of dielectric surrounding the circuit makes the filter less sensitive to ambient temperature variations. |
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