Lowpass Harmonic Filter

SMC Offers a full range of rectangular waveguide Lowpass Harmonic Filters covering the waveguide sizes WR19 thru WR650. 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.

Data Sheets (click to download):

Rectangular Waveguide LP Filter

Specifications (50% Bandwidth)

Low pass filters Waveguide 50% BW

Pressurized and TVAC units are available based on the client requirement.
Filters are available with coaxial and/or waveguide interfaces.

Model Number Waveguide Size Frequency Range Rejection 60 dB @2nd & 3rd Harmonic IL RL Dimension (L) inch
SMC-032650 WR-650 1.12 – 1.7 2.24 – 5.1 0.1 23 25
SMC-032430 WR-430 1.7 – 2.6 3.4 – 7.8 0.1 23 16
SMC-032340 WR-340 2.2 – 3.3 4.4 – 9.9 0.15 23 12
SMC-032284 WR-284 2.6 – 3.95 5.2 – 11.85 0.15 23 11
SMC-032229 WR-229 3.3 – 4.9 6.6 – 14.7 0.15 23 8
SMC-032187 WR-187 3.95 – 5.85 7.9 – 17.55 0.15 23 7
SMC-032159 WR-159 4.9 – 7.05 9.8 – 21.15 0.15 23 5.5
SMC-032137 WR-137 5.85 – 8.2 11 – 24.6 0.2 20 4.75
SMC-032112 WR-112 7.05 – 10 14.1 – 30 0.2 20 4
SMC-032090 WR-90 8.2 – 12.4 16.4 – 37.2 0.3 20 3.75
SMC-032075 WR-75 10-15 GHz 20 – 45 0.3 20 3
SMC-032062 WR-62 12.4 – 18 24.8 – 54 0.3 20 2.5
SMC-032051 WR-51 15 – 22 30 – 66 0.3 20 2.25
SMC-032042 WR-42 18 – 26.5 36 – 79.5 0.3 20 1.75
SMC-032034 WR-34 22 – 33 44 -99 0.3 20 1.5
SMC-032028 WR-28 26.5 – 40 53 – 120 0.4 20 1.25
SMC-032022 WR-22 33 – 50 66 – 150 0.4 20 1.25
SMC-032019 WR-19 40-60 80 – 180 0.4 20 1
SMC-032015 WR-15 50.0-60.0 GHz Upon Request Upon Request Upon Request 1
SMC-032012 WR-12 60.0-90.0 GHz Upon Request Upon Request Upon Request 1
SMC-032010 WR-10 75.0-110.0 GHz Upon Request Upon Request Upon Request 1
Specifications (100% Bandwidth)
Low pass filters Waveguide 100% BW
Pressurized and TVAC units are available based on the client requirement.
Filters are available with coaxial and/or waveguide interfaces.

Model Number Waveguide Size Frequency Range Rejection 60 dB @2nd & 3rd Harmonic IL RL Dimension (L) inch
SMC-032650 WR-650 1.12 – 1.7 2.24 – 5.1 0.15 20 30
SMC-032430 WR-430 1.7 – 2.6 3.4 – 7.8 0.15 20 26
SMC-032340 WR-340 2.2 – 3.3 4.4 – 9.9 0.2 20 15
SMC-032284 WR-284 2.6 – 3.95 5.2 – 11.85 0.2 20 13
SMC-032229 WR-229 3.3 – 4.9 6.6 – 14.7 0.25 20 10
SMC-032187 WR-187 3.95 – 5.85 7.9 – 17.55 0.25 20 9
SMC-032169 WR-169 4.9 – 7.05 9.8 – 21.15 0.25 20 7
SMC-032137 WR-137 5.85 – 8.2 11 – 24.6 0.3 18 5.75
SMC-032112 WR-112 7.05 – 10 14.1 – 30 0.3 18 5
SMC-032090 WR-90 8.2 – 12.4 16.4 – 37.2 0.4 18 4.75
SMC-032075 WR-75 10-15 GHz 20 – 45 0.4 18 3.5
SMC-032062 WR-62 12.4 – 18 24.8 – 54 0.4 18 3
SMC-032051 WR-51 15 – 22 30 – 66 0.4 18 2.75
SMC-032042 WR-42 18 – 26.5 36 – 79.5 0.5 18 2.25
SMC-032034 WR-34 22 – 33 44 -99 0.5 18 1.75
SMC-032028 WR-28 26.5 – 40 53 – 120 0.6 18 1.5
SMC-032022 WR-22 33 – 50 66 – 150 0.6 18 1.25
SMC-032019 WR-19 40 – 60 80 – 180 0.6 18 1.25
SMC-032015 WR-15 50.0-60.0 GHz Upon Request Upon Request Upon Request 1
SMC-032012 WR-12 60.0-90.0 GHz Upon Request Upon Request Upon Request 1
SMC-032010 WR-10 75.0-110.0 GHz Upon Request Upon Request Upon Request 1

Model Number	Waveguide Size	Frequency Range	Rejection 60 dB @2nd & 3rd Harmonic	IL	RL	Dimension (L) inch
SMC-032650	WR-650	1.12 – 1.7	2.24 – 5.1	0.1	23	25
SMC-032430	WR-430	1.7 – 2.6	3.4 – 7.8	0.1	23	16
SMC-032340	WR-340	2.2 – 3.3	4.4 – 9.9	0.15	23	12
SMC-032284	WR-284	2.6 – 3.95	5.2 – 11.85	0.15	23	11
SMC-032229	WR-229	3.3 – 4.9	6.6 – 14.7	0.15	23	8
SMC-032187	WR-187	3.95 – 5.85	7.9 – 17.55	0.15	23	7
SMC-032159	WR-159	4.9 – 7.05	9.8 – 21.15	0.15	23	5.5
SMC-032137	WR-137	5.85 – 8.2	11 – 24.6	0.2	20	4.75
SMC-032112	WR-112	7.05 – 10	14.1 – 30	0.2	20	4
SMC-032090	WR-90	8.2 – 12.4	16.4 – 37.2	0.3	20	3.75
SMC-032075	WR-75	10-15 GHz	20 – 45	0.3	20	3
SMC-032062	WR-62	12.4 – 18	24.8 – 54	0.3	20	2.5
SMC-032051	WR-51	15 – 22	30 – 66	0.3	20	2.25
SMC-032042	WR-42	18 – 26.5	36 – 79.5	0.3	20	1.75
SMC-032034	WR-34	22 – 33	44 -99	0.3	20	1.5
SMC-032028	WR-28	26.5 – 40	53 – 120	0.4	20	1.25
SMC-032022	WR-22	33 – 50	66 – 150	0.4	20	1.25
SMC-032019	WR-19	40-60	80 – 180	0.4	20	1
SMC-032015	WR-15	50.0-60.0 GHz	Upon Request	Upon Request	Upon Request	1
SMC-032012	WR-12	60.0-90.0 GHz	Upon Request	Upon Request	Upon Request	1
SMC-032010	WR-10	75.0-110.0 GHz	Upon Request	Upon Request	Upon Request	1

Model Number	Waveguide Size	Frequency Range	Rejection 60 dB @2nd & 3rd Harmonic	IL	RL	Dimension (L) inch
SMC-032650	WR-650	1.12 – 1.7	2.24 – 5.1	0.15	20	30
SMC-032430	WR-430	1.7 – 2.6	3.4 – 7.8	0.15	20	26
SMC-032340	WR-340	2.2 – 3.3	4.4 – 9.9	0.2	20	15
SMC-032284	WR-284	2.6 – 3.95	5.2 – 11.85	0.2	20	13
SMC-032229	WR-229	3.3 – 4.9	6.6 – 14.7	0.25	20	10
SMC-032187	WR-187	3.95 – 5.85	7.9 – 17.55	0.25	20	9
SMC-032169	WR-169	4.9 – 7.05	9.8 – 21.15	0.25	20	7
SMC-032137	WR-137	5.85 – 8.2	11 – 24.6	0.3	18	5.75
SMC-032112	WR-112	7.05 – 10	14.1 – 30	0.3	18	5
SMC-032090	WR-90	8.2 – 12.4	16.4 – 37.2	0.4	18	4.75
SMC-032075	WR-75	10-15 GHz	20 – 45	0.4	18	3.5
SMC-032062	WR-62	12.4 – 18	24.8 – 54	0.4	18	3
SMC-032051	WR-51	15 – 22	30 – 66	0.4	18	2.75
SMC-032042	WR-42	18 – 26.5	36 – 79.5	0.5	18	2.25
SMC-032034	WR-34	22 – 33	44 -99	0.5	18	1.75
SMC-032028	WR-28	26.5 – 40	53 – 120	0.6	18	1.5
SMC-032022	WR-22	33 – 50	66 – 150	0.6	18	1.25
SMC-032019	WR-19	40 – 60	80 – 180	0.6	18	1.25
SMC-032015	WR-15	50.0-60.0 GHz	Upon Request	Upon Request	Upon Request	1
SMC-032012	WR-12	60.0-90.0 GHz	Upon Request	Upon Request	Upon Request	1
SMC-032010	WR-10	75.0-110.0 GHz	Upon Request	Upon Request	Upon Request	1

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Specifications (50% Bandwidth)

Low pass filters Waveguide 50% BW

Specifications (100% Bandwidth)

Low pass filters Waveguide 100% BW

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