Double-Ridge Lowpass Harmonic Filters

SMC Offers a full range of double-ridge Lowpass Harmonic Filters covering the waveguide sizes WRD110 thru WRD750. Their superior electrical performance are characterized by low loss, wide-out-of-band rejection, in and out of band spurious free response and very high power handling capability due to our proprietary design techniques developed by SMC.

** Dimensions are listed in inches.

Specifications (50% Bandwidth)

Double-Ridge Waveguide Low Pass filter 50% BW

Pressurized and TVAC units are available based on the client requirement.
*WRD250S/WRD600 are SMC special designed double-ridge waveguide structures that cover extremely wide band 3:1.
*WRD600P is an SMC special designed double-ridge waveguide structure with exceptional high power handling capability.
Filters are available with coaxial and/or waveguide interfaces.

Model Number	Waveguide Size	Frequency Range	IL	RL	Dimension A (inch)	Dimension B (inch)
SMC-032D840	WRD840	0.84-2.00 GHz	0.15	20	30	30
SMC-032D200	WRD200	2.00-4.80 GHz	0.2	20	13	26
SMC-032D250S*	WRD250S	2.50-7.50 GHz	0.25	20	8	15
SMC-032D250	WRD250	2.60-7.80 GHz	0.25	20	8	13
SMC-032D350	WRD350	3.50-8.20 GHz	0.3	18	6	10
SMC-032D475	WRD475	4.75-11.00 GHz	0.35	18	5	9
SMC-032D500	WRD500	5.00-18.00 GHz	0.4	18	4	7
SMC-032D580	WRD580	5.80-16.00 GHz	0.4	18	4	5.75
SMC-032D600P*	WRD600P	6.00-12.00 GHz	0.4	18	4.75	5
SMC-032D600*	WRD600	6.00-18.00 GHz	0.4	18	4	4.75
SMC-032D650	WRD650	6.50-18.00 GHz	0.4	18	4	3.5
SMC-032D750	WRD750	7.50-18.00 GHz	0.4	18	4	3
SMC-032D180	WRD180	18.00-40.00 GHz	0.6	18	1.5	2.75

Specifications (100% Bandwidth)

Double-Ridge Waveguide Low Pass filter 100% BW

Model Number	Waveguide Size	Frequency Range	IL	RL	Dimension L (inch)
SMC-032D840	WRD840	0.84-2.00 GHz	0.15	20	30
SMC-032D200	WRD200	2.00-4.80 GHz	0.2	20	13
SMC-032D250S*	WRD250S	2.50-7.50 GHz	0.25	20	8
SMC-032D250	WRD250	2.60-7.80 GHz	0.25	20	8
SMC-032D350	WRD350	3.50-8.20 GHz	0.3	18	6
SMC-032D475	WRD475	4.75-11.00 GHz	0.35	18	5
SMC-032D500	WRD500	5.00-18.00 GHz	0.4	18	4
SMC-032D580	WRD580	5.80-16.00 GHz	0.4	18	4
SMC-032D600P*	WRD600P	6.00-12.00 GHz	0.4	18	4.75
SMC-032D600*	WRD600	6.00-18.00 GHz	0.4	18	4
SMC-032D650	WRD650	6.50-18.00 GHz	0.4	18	4
SMC-032D750	WRD750	7.50-18.00 GHz	0.4	18	4
SMC-032D180	WRD180	18.00-40.00 GHz	0.6	18	1.5

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