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The following is a brief list of waveguide types that we most commonly deal with. If it's Elliptical Waveguides you're looking for then try our Elliptical Waveguides page. You may also want to refer to our Waveguide Reference page for more details.

Microwave Components

Waveguide to Coax Adapters	Medium Power-Low VSWR
Elliptical Waveguides	Medium Power Terminations
Waveguide Shorts	High Power Dummy Loads
Waveguide Pressure Windows	Flat with Frequency Fixed Attenuators
Waveguide Mechanical Switches	High Power Fixed Attenuators
Waveguide Tees-Hybrid	Flat with Frequency Variable Attenuators
Waveguide Cross Couplers	Direct Reading Variable Attenuators
Waveguide to Coax	Variable Phase Shifters
Waveguide Multi Output	Pressurization Section
Waveguide Multihole Couplers	30° and 60° Waveguide Bends
Waveguide to Waveguide Adapters	45° and 90° Waveguide Bends
Low Power-Low VSWR	Bulkhead Freedthrus, Twist, & Straight Sections
Short Length Models	Flexible Waveguide
Low Power Terminations	Standard Gain Horns - WR284 to WR28

Please feel free to contact us for any and all of your needs.

WAVEGUIDE to COAX ADAPTERS

Specifications:

• VSWR........1.25 Max
• Coax Connector.....Type N Female (Series 460), SMA Female (Series 462)

Material:

• Housing.......Aluminum
• Connector.......per MIL-C-39012
• Flange Type.....Cover Standard
• Finish........per MIL-C-22750

Options:

• For brass material, add B to basic model number.
• For choke flange, precede model number with C.
• For CPR or other flange, precede model number with flange type. Ex: CPR137G-462
• Other connector types available
• Lower VSWR specs available over narrow frequency bandwidths
• End launch version available in limited bandwidths

*VSWR is 1.3 Max

** PLEASE CONTACT US WITH YOUR SPECIFIC REQUIREMENTS **

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WAVEGUIDE SHORTS

General Description:

Series 380 waveguide shorting plates provide high reflection short circuits for terminating all standard waveguides from WR430 to WR28. They are designed to mate with the standard cover or choke flanges in each waveguide size. The units listed in the table are made of aluminum, but brass is available as as option.

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WAVEGUIDE PRESSURE WINDOWS

General Description:

Series 235 pressure windows are designed to isolate pressurized sections from non-pressurized sections in waveguide systems. They are also used to prevent solid or liquid contaminants from entering the waveguide system. The material and sealing techniques employed insure high pressurization levels in the severe environments encountered in military applications. Impedance matching designs provide low VSWR performance in all of the standard waveguide sized from WR284 to WR28.

Material:

• Flange.....Brass
• Window......Copper-Clad, Teflon-Fiberglass
• Flange Type.....Cover Standard

Options:

• For cover/choke flange, add - 1
• For choke,choke flange, add -2

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WAVEGUIDE MECHANICAL SWITCHES (Manual & Solenoid)

Specifications:

• Isolation......70 dB Min
• Insertion Loss......0.1 dB Max
• VSWR......1.10 Max, 1.15 for WR 42 & 48
• Switching Speed......125 msec. Max
• Solenoid Voltage......28 Volts DC Standard
• Connector......Bendix
• Flange Type......See flange codes
• Material......Aluminum

Finish:

• Flange Face......Chemical Conversion
• Housing...... per MIL-C-22750

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WAVEGUIDE TEES
(Series Shunt Hybrid)

Specifications:

• Material......Aluminum
• Flange Type.....Cover Standard
• Finish...... per MIL-C22750

Options:

• All units are available with choke or other type flanges. feel free to contact us.
• For brass material, add B to model number.
• Matched models with low VSWR are available on special order.

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WAVEGUIDE CROSS GUIDE COUPLERS
(Terminated & Unterminated)

Specifications:

• Directivity (See Gen Info)....15 dB Min
• Frequency Sensitivity....+/-1.3 dB Max
• Coupling....1.15 Max, 1.20 for WR 42 thru 28
• Finish....per MIL-C-22750

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Specifications:

• Directivity (See Gen Info)....15 dB Min
• Frequency Sensitivity.....+/-1.3 dB Max
• Coupling.....20-60 dB available

VSWR:

• Main Line....1.15 Max
• Coaxial Output.....1.25 Max, 1.30 for WR 42 thru 28
• Finish.....per MIL-C-22750

Specifications:

• Directivity (See Gen Info)....15 dB Min
• Frequency Sensitivity.....+/-1.3 dB Max
• Coupling.....20-60 dB available

VSWR:

• Main Line....1.15 Max
• Coaxial Output.....1.25 Max, 1.30 for WR 42 thru 28
• Finish.....per MIL-C-22750

WAVEGUIDE CROSS GUIDE COUPLERS
(Multiple Outputs)

General Description:

This series of cross-guide directional couplers offer two or more coupled outputs with customer selected coupling values for each arm. The coupled output port can be waveguide or coaxial. Directivity can be optimized over specified frequency ranges.

Specifications:

• Directivity (See Gen Info)....15 dB Min
• Frequency Sensitivity....+/-1.3dB Max
• Coupling....20 - 60 dB available

VSWR:

• Main Line....1.15 Max, 1.20 for WR 42 thru 28
• WG Output....1.15 Max, 1.20 for WR 42 thru 28
• Coaxial Output....1.25 Max, 1.30 for WR 42 thru 28
• Finish..... per MIL-C-22750

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Specifications:

• Complete waveguide band performance
• High directivity and Low VSWR
• Flat coupling with frequency
• Nominal Coupling.....3, 6, 10, 20, & 30 dB
• Coupling Accuracy.....+/-0.4 dB
• Frequency Sensitivity.....+/-0.5 dB
• Directivity.....40 dB Min
• VSWR (Max).....1.05 Primary*, 1.15 Sec (W/G)*, 1.25 Sec (Coax)*
• Finish.....per MIL-C-22750

Applications:

• Accurate monitoring of power or frequency
• VSWR measurement by reflection techniques
• Accurate standard or attenuation
• Injection of local oscillator power into mixers.

** PLEASE CONTACT US WITH YOUR SPECIFIC REQUIREMENTS **

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WAVEGUIDE TO WAVEGUIDE ADAPTERS

General Description:

Waveguide to waveguide transitions utilize a tapered design which achieves a very low VSWR. Other combinations of waveguide sizes along with transitions from full height to half height or 3/4 height waveguide available upon request.

General Description:

General Description:

Series 640 was designed to achieve low VSWR over a narrow frequency in a short length. These units utilize either tongue or step elements. Other frequency ranges, as well as shorter lengths, and high power are available on request. feel free to contact us. for details.

Specifications

• VSWR.....1.15 Max
• Material.....Aluminum
• Flange Type.....Cover Standard
• Finish.....per MIL-C-22750
• Form Factor.....7268

• For brass material, add B to basic model number.
• For choke flange, precede model number with C.
• For CPR or other flange, precede model with flange type. Ex: CPR137G-640

• VSWR.....1.15 Max
• Material.....Aluminum
• Flange Type.....Cover Standard
• Finish.....per MIL-C-22750
• Form Factor.....7268

• For brass material, add B to basic model number.
• For choke flange, precede model number with C. VSWR is 1.03 Max.
• For CPR or other flange, precede model number with flange type. Ex: CPR137G-660

• VSWR.....1.10 Max, 1.15 for WR 42 & 48
• Material.....Aluminum
• Flange Type.....Cover Standard
• Finish.....High temperature black paint
• Form Factor.....7271

• For brass material, add B to basic model number.
• For choke flange, precede model number with C. VSWR is 1.05 Max.
• For CPR or other flange, precede model number with flange type. Ex: CPR137G-930

• VSWR.....1.10 Max, 1.15 for WR 42 & 48
• Material.....Aluminum
• Flange Type.....Cover Standard
• Finish.....High Temperature black paint

Options:

• For brass material, add B to basic model number.
• For choke flange, precede model number with C. VSWR is 1.05 Max.
• For CPR or other flange, precede model number with flange type. Ex: CPR137G-930

• VSWR.....1.15 Max
• Material.....Aluminum
• Flange Type.....Cover Standard
• Finish.....High Temperature black paint

Options:

• For brass material, add B to basic model number.
• For choke flange, precede model number with C.
• For CPR or other flange, precede model number with flange type. Ex: CPR137G-920
• Shorter lengths and different power capabilities available upon request; feel free to contact us.

• VSWR.....1.15 Max, 1.20 for WR 42 & 28
• Attenuation.....3,6,10,20 dB (others available upon request)
• Material.....Aluminum
• Flange Type.....Cover Standard
• Finish.....per MIL-C-22750
• Form Factor.....7252

Options:

• For brass material add B to basic model number.
• For cover/choke flange, add -1.
• For choke/choke flange, add -2.
• For CPR or other flange, precede model number with flange type. Ex: CPR137G-482-20

 

WAVEGUIDE FIXED ATTENUATORS HIGH POWER

Specifications:

• RF Power.....40 Watts average
• VSWR.....1.15 Max, 1.20 for WR 42
• Attenuation.....3, 6, 10, 20 dB (others available upon request)
• Atten Accuracy.....+/- dB at cal Frequency
• Material.....Aluminum
• Flange Type.....Cover Standard
• Finish..... per MIL-C-22750
• Form Factor.....7253

Options:

• For brass material, add B to basic model number.
• For cover/choke flange, add -1.
• For choke/choke flange, add -2.
• For CPR or other flange, precede model number with flange type. Ex: CPR137G-485

Note: These attenuators are calibrated at the frequency designated below. Other frequency calibrations are available; feel free to contact us.

Frequency Range (GHz)	Waveguide Size	Calibration Frequency (GHz)	Length (In)	Model No.*
2.60-3.95	WR284	3.0	11.00	284-485-
3.30-4.90	WR229	4.1	10.00	229-485-
3.95-5.85	WR187	4.9	9.38	187-485-
4.90-7.05	WR159	6.0	9.00	159-485-
5.85-8.20	WR137	6.8	8.63	137-485-
7.05-10.0	WR112	8.6	5.31	112-485-
7.60-11.0	WR102	9.0	5.00	102-485-
8.20-12.4	WR90	9.6	4.50	90-485-
10.0-15.0	WR75	12.5	4.50	75-485-
12.4-18.0	WR62	15.0	4.00	62-485-
18.0-26.5	WR42	22.0	4.00	42-485-

*To complete model number, add value of attenuation in dB. Ex: 187-485-10

** PLEASE CONTACT US WITH YOUR SPECIFIC REQUIREMENTS **

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WAVEGUIDE VARIABLE ATTENUATORS (Flat with Frequency)

General Specifications

• RF Power.....20 dB Min
• VSWR.....1.15 Max, 1.25 for WR 42 & 28
• Insertion Loss.....0.5 dB Max
• Flange Type..... Cover Standard
• RF Power.....4 Watts Average
• Material.....Aluminum
• Finish.....per MIL-C-22750
• Form Factor.....0-3224

Options

• For brass material, add B to basic model number.
• For cover/choke flange, add -1.
• For choke/choke flange, add -2.
• For CPR or other flange, precede model number with flange type. Ex: CPR137G-535-20
• For turns-counting-dial, precede model number with T. Ex: CPR137G-T535-20
• For DC motorized unit, suffix model number with -28.
• Six Watt higher power models available.

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WAVEGUIDE VARIABLE ATTENUATORS (Direct Reading)

General Description:

Series 525 direct reading waveguide attenuators are available in waveguide sizes from WR284 thru WR 28. All models come with calibrated dials in 1 dB increments and the dial accuracy is equivalent to the attenuation vs frequency specifications or better. For greater accuracy over narrower bands or models with more attention, please feel free to contact us.

General Specifications:

• Attenuation Range.....10 dB models, 20 dB models
• VSWR.....1.15 Max, 1.25 for WR & WR 28
• Insertion Loss.....0.5 dB Max
• Flange Type.....Cover Standard
• Finish.....per MIL-C-22750
• Form.....0-2905

Options:

1. For brass material, add B to basic model number.
2. For cover/choke flange, add -1.
3. For choke/choke flange, add -2.
4. For CPR or other flange, precede series number with flange type. Ex: CPR137G-525-10

Frequency Range (GHz)	Waveguide Size	Atten Range(dB)	Atten vs Frequency (+/-dB)	Power (Avg.)	Length (In)	Model No.
2.60-3.95	WR284	10 20	1.0 2.0	10.0 10.0	13.50 13.50	284-525-10 284-525-20
3.30-4.90	WR229	10 20	1.0 2.0	8.0 8.0	12.00 12.00	229-525-10 229-525-20
3.95-5.85	WR187	10 20	1.0 2.0	5.0 5.0	10.0 10.0	187-525-10 187-525-20
4.90-7.05	WR159	10 20	1.0 1.7	5.0 5.0	9.00 9.00	159-525-10 159-525-20
5.85-8.20	WR137	10 20	1.0 1.5	4.0 4.0	8.00 8.00	137-525-10 137-525-20
7.05-10.0	WR112	10 20	1.0 1.5	1.0 1.0	4.75 4.75	112-525-10 112-525-20
7.00-11.0	WR102	10 20	1.0 1.5	1.0 1.0	4.25 4.25	102-525-10 102-525-20
8.20-12.4	WR90	10 20	1.0 1.5	1.0 1.0	3.50 3.50	90-525-10 90-525-20
10.0-15.0	WR75	10 20	1.0 1.5	1.0 1.0	3.25 3.25	75-525-10 75-525-20
12.4-18.0	WR62	10 20	1.0 2.0	1.0 1.0	3.00 3.00	62-525-10 62-525-20
18.0-26.5	WR42	10 20	1.5 2.0	1.0 1.0	2.63 2.63	42-525-10 42-525-20
26.5	40.0	10 20	1.5 2.0	1.0 1.0	2.40 2.40	28-525-10 28-525-20

** PLEASE CONTACT US WITH YOUR SPECIFIC REQUIREMENTS **

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WAVEGUIDE PRESSURIZATION SECTIONS

Specifications:

• VSWR.....1.08 Max, 1.15 for WR 42 thru 28
• Material.....Aluminum
• Flanges.....Cover/Cover Standard
• Finish.....per MIL-C-22750

General Description:

These units are straight sections of waveguide fitted with a Schrader Valve and calibrated gauge. When installed in a system they permit the waveguide to be pressurized with air or an inert gas. The units are pressure tested at 30 PSIG. They are also available without the pressure gauge. See option number five.

Options:

• For brass material, add B to basic model number.
• Length may be modified. Replace last two digits with required length in inches.
• For A cover/B choke flange, add -1. For A choke/B choke flange, add -2. For A choke/B flange, add-3.
• For CPR or other flange, precede model number with flange type. Ex: CPR137G-290-04
• For units without gauge, change the Series Number 290 to Series Number 295. Ex: 62-290-04 becomes 62-295-04 without gauge.

Frequency Range (GHz)	Waveguide Size	Length (In)	Height(In)	Model No.
1.12-1.70	WR650	8	4.33	650-290-08
1.70-2.60	WR430	8	4.33	430-290-08
2.10-3.00	WR340	8	4.33	340-290-08
2.60-3.95	WR284	6	4.33	284-290-06
3.30-4.90	WR229	6	4.33	229-290-06
3.95-5.85	WR187	5	2.81	187-290-05
4.90-7.05	WR159	5	2.81	159-290-05
5.85-8.20	WR137	5	2.81	137-290-05
7.05-10.0	WR112	5	2.81	112-290-05
7.00-11.0	WR102	5	2.81	102-290-05
8.20-12.4	WR90	5	2.81	90-290-05
10.0-15.0	WR75	5	2.81	75-290-05
12.4-18.0	WR62	4	2.81	62-290-04
15.0-22.0	WR51	4	2.81	51-290-04
18.0-26.5	WR42	4	2.81	42-290-04
22.0-33.0	WR34	4	2.81	34-290-04
26.5-40.0	WR28	4	2.81	28-290-04

** PLEASE CONTACT US WITH YOUR SPECIFIC REQUIREMENTS **

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WAVEGUIDE VARIABLE PHASE SHIFTERS

Specifications:

• Phase Shift.....90 Degree Min*
• VSWR.....1.50 Max
• Insertion Loss.....1.0 dB Max
• Flange Type.....Cover Standard
• Material.....Aluminum
• Finish.....per MIL-C-22750
• Form Factor.....0-3224

Options:

• For brass material, add B to basic model number.
• For cover/choke flange, add -1. For choke/choke flange, add -2.
• For CPR or other flange, precede series number with flange type. Ex: CPR137G-720-90
• For DC motorized unit, suffix model number with -28.
• For turns-counting-dial, precede model number with a T.

Frequency Range (GHz)	Waveguide Size	Length (In)	Model No.*
2.60-3.95	WR284	14.5	284-720-90
3.30-4.90	WR229	12.8	229-720-90
3.95-5.85	WR187	10.9	187-720-90
4.90-7.05	WR159	9.8	159-720-90
5.85-8.20	WR137	8.7	137-720-90
7.05-10.0	WR112	6.9	112-720-90
7.00-11.0	WR102	6.6	102-720-90
8.20-12.4	WR90	5.8	90-720-90
10.0-14.5	WR75	4.6	75-720-90
12.4-18.0	WR62	3.5	62-720-90
15.0-22.0	WR51	3.5	51-720-90
18.0-26.5	WR42	2.9**	72-720-90
26.5-40.0	WR28	2.4**	28-720-90

*180 degree adjustment available over limited bandwidths; feel free to contact us..

**For DC motorized version, insertion length is 3.25 inches.

** PLEASE CONTACT US WITH YOUR SPECIFIC REQUIREMENTS **

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Waveguide Bends (30 and 60 Degree)

General Specifications:

• VSWR.....1.05 Max, 1.10 for WR 42 & 28
• Material.....Aluminum
• Flanges.....Cover/Cover
• Finish.....per MIL-C-22750

Options:

• For brass material, add B to base model number.
• For cover/choke flange, add -1.
• For choke/choke flange, add -2.
• For CPR or other flange, precede model number with flange type. Ex: CPR137G-406

30 & 60 Degree E Plane Bends

Frequency Range(GHz)	WG Size	30 Degree	60 Degree
1.70-2.60	430	430-403	430-406
2.10-3.00	340	340-403	340-406
2.60-3.95	284	284-403	284-406
3.30-4.90	229	229-403	229-406
3.95-5.85	187	187-403	187-406
4.90-7.05	159	159-403	159-406
5.85-8.20	137	137-403	137-406
7.05-10.0	112	112-403	112-406
7.00-11.0	102	102-403	102-406
8.20-12.4	90	90-403	90-406
10.0-15.0	75	75-403	75-406
12.4-18.0	62	62-403	62-406
15.0-22.0	51	51-403	51-406
18.0-26.5	42	42-403	42-406
26.5-40.0	28	28-403	28-406

 

30 and 60 Degree H Plane Bends

Frequency Range(GHz)	WG Size	30 Degree	60 Degree
1.70-2.60	430	430-423	430-426
2.10-3.00	340	340-423	340-426
2.60-3.95	284	284-423	284-426
3.30-4.90	229	229-423	229-426
3.95-5.85	187	187-423	187-426
4.90-7.05	159	159-423	159-426
5.85-8.20	137	137-423	137-426
7.05-10.0	112	112-423	112-426
7.00-11.0	102	102-423	102-426
8.20-12.4	90	90-423	90-426
10.0-15.0	75	75-423	75-426
12.4-18.0	62	62-423	62-426
15.0-22.0	51	51-423	51-426
18.0-26.5	42	42-423	42-426
26.5-40.0	28	28-423	28-426

** PLEASE CONTACT US WITH YOUR SPECIFIC REQUIREMENTS **

Specifications:

• VSWR.....1.05 Max, 1.10 Max for WR 42 & 28, 1.10 Max for miter bends
• Material...Aluminum
• Flanges.....Cover/Cover Standard
• Finish.....per MIL-C-22750

Options:

• For brass material, add B to base model number.
• For cover/choke flange, add -1.
• For choke/choke flange, add -2.
• For CPR or other flange, precede series number with flange type. Ex: CPR137G-401

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Bulkhead Feedthrus, Twists, & Straight Sections

Specifications:

• Material.....Aluminum
• Flanges.....Cover Standard
• Finish.....per MIL-C-22750

Options:

• For brass material, add B to basic model number.
• For A cover/B choke flange, add -1. For A choke/B choke flange, add -2. For A choke/B flange, add -3.
• For CPR or other flange, precede series number with flange type. Ex: CPR137G-220-06
• Length may be modified. Replace last two digits with required length in inches.

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Flexible Waveguide

General Description:

Flexible waveguide sections are offered in all waveguide sizes. Standard units have cover flanges. Molded neoprene rubber jackets are available. All waveguide sizes come in standard lengths 6, 12, 18, and 24 inches. For optional length and jacket types, feel free to contact us. Other flange combinations are available (see footnote). For special assemblies, feel free to contact us..

All units are designed to meet stringent military environments and specifications.

Specifications:

• Frequency Range.....2.6 - 40.0 GHz
• Waveguide Type.....Flexible Twistable
• Material.....Brass, Preconvoluted
• Jacket.....Neoprene Rubber
• Flange type.....Cover (Std) See below
• VSWR.....See below
• Insertion Loss.....See below

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General Description:

These standard gain waveguide horns are ideal for field use as receiving or transmitting antennas, as well as pick-up horns. The straight-line pyramidal design achieves a low VSWR. The minimum gain of these horns is 15 dB at low frequency and 18 dB at the high frequency of the waveguide.

Specifications:

• Frequency Range.....2.6 - 40.0 GHz
• Gain.....15 - 18 dB Min
• VSWR.....1.25 Max
• Material.....Aluminum
• Output Connector:
• Series 860.....Type N Female Coax, Series 862.....SMA Female Coax, Series 880, W/G Flange (Cover Std)*
• Finish.....Black paint per MIL-L-81352
• For choke flange, precede model number with a C. Ex: C112-880.
• For CPR or other flange, precede model number with flange type. Ex: CPR137G-880

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