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Cast Waveguide Bends
We stock many popular sizes of Cast Waveguide Bends. These are soldered/brazed onto waveguide to create a 30, 45, or 90 degree E or H bend in a waveguide system. (What does E and H mean?)

We stock Copper Alloy (Suitable for "Hard" Soldering/Brazing or "Soft" Soldering) and Aluminum Alloy (Suitable for Dip-Brazing or Furnace Brazing). All Castings are frequency compensated and have a VSWR generally less than 1.05 over the individual waveguide band.

90 Degree Bends

Waveguide Size Frequency Range Type of Bend Part Number for Be-Copper Alloy Part Number for Aluminum Alloy Dimension A
WR-284
(R32)
2.60-3.95 90 Degree E-bend PE284-90-1B PE284-90-1A .781
90 Degree H-bend PH284-90-1B PH284-90-1A 1.531
WR-229
(R40)
3.30-4.90 90 Degree E-bend PE229-90-1B PE229-90-1A .700
90 Degree H-bend PH229-90-1B PH229-90-1A 1.234
 WR-187
(R48)
 3.95-5.85 90 Degree E-bend PE187-90-1B PE187-90-1A .593
90 Degree H-bend PH187-90-1B PH187-90-1A 1.063
 WR-159
(R58)
 4.90-7.05 90 Degree E-bend PE159-90-1B PE159-90-1A .550
90 Degree H-bend PH159-90-1B PH159-90-1A 1.000
 WR-137
(R70)
 5.85-8.20 90 Degree E-bend PE137-90-1B PE137-90-1A .438
90 Degree H-bend PH137-90-1B PH137-90-1A .830
 WR-112
(R84)
 7.05-10.0 90 Degree E-bend PE112-90-1B PE112-90-1A .344
90 Degree H-bend PH112-90-1B PH112-90-1A .656
 WR-102  7.00-11.0 90 Degree E-bend PE102-90-1B PE102-90-1A .380
90 Degree H-bend PH102-90-1B PH102-90-1A .640
 WR-90
(R100)
 8.20-12.4 90 Degree E-bend PE90-90-1B PE90-90-1A .325
90 Degree H-bend PH90-90-1B PH90-90-1A .575
 WR-75
(R120)
 10.0-15.0 90 Degree E-bend PE75-90-1B PE75-90-1A .325
90 Degree H-bend PH75-90-1B PH75-90-1A .484
 WR-62
(R140)
 12.4-18.0 90 Degree E-bend PE62-90-1B PE62-90-1A .250
90 Degree H-bend PH62-90-1B PH62-90-1A .368
WR-51
(R180)
15.0-22.0 90 Degree E-bend PE51-90-1B PE51-90-1A .187
90 Degree H-bend PH51-90-1B PH51-90-1A .312
 WR-42
(R220)
 18.0-26.5 90 Degree E-bend PE42-90-1B PE42-90-1A .170
90 Degree H-bend PH42-90-1B PH42-90-1A .300
 WR-28
(R320)
 26.5-40.0 90 Degree E-bend PE28-90-1B PE28-90-1A .140
90 Degree H-bend PH28-90-1B PH28-90-1A .210
 WR-22  33.0-50.0 90 Degree E-bend PE22-90-1B PE22-90-1A .125
90 Degree H-bend PH22-90-1B PH22-90-1A .187

45 Degree Bends

Waveguide Size Frequency Range Type of Bend Part Number for Be-Copper Alloy Part Number for Aluminum Alloy Dimension A
WR-284 2.60-3.95 90 Degree E-bend PE284-45-1B PE284-45-1A  
90 Degree H-bend PH284-45-1B PH284-45-1A  
WR-229 3.30-4.90 90 Degree E-bend PE229-45-1B PE229-45-1A  
90 Degree H-bend PH229-45-1B PH229-45-1A  
 WR-187  3.95-5.85 90 Degree E-bend PE187-45-1B PE187-45-1A  
90 Degree H-bend PH187-45-1B PH187-45-1A  
 WR-159  4.90-7.05 90 Degree E-bend PE159-45-1B PE159-45-1A  
90 Degree H-bend PH159-45-1B PH159-45-1A  
 WR-137  5.85-8.20 90 Degree E-bend PE137-45-1B PE137-45-1A  
90 Degree H-bend PH137-45-1B PH137-45-1A  
 WR-112  7.05-10.0 90 Degree E-bend PE112-45-1B PE112-45-1A  
90 Degree H-bend PH112-45-1B PH112-45-1A  
 WR-102  7.00-11.0 90 Degree E-bend PE102-45-1B PE102-45-1A  
90 Degree H-bend PH102-45-1B PH102-45-1A  
 WR-90  8.20-12.4 90 Degree E-bend PE90-45-1B PE90-45-1A  
90 Degree H-bend PH90-45-1B PH90-45-1A  
 WR-75  10.0-15.0 90 Degree E-bend PE75-45-1B PE75-45-1A  
90 Degree H-bend PH75-45-1B PH75-45-1A  
 WR-62  12.4-18.0 90 Degree E-bend PE62-45-1B PE62-45-1A  
90 Degree H-bend PH62-45-1B PH62-45-1A  
WR-51 15.0-22.0 90 Degree E-bend PE51-45-1B PE51-45-1A  
90 Degree H-bend PH51-45-1B PH51-45-1A  
 WR-42  18.0-26.5 90 Degree E-bend PE42-45-1B PE42-45-1A  
90 Degree H-bend PH42-45-1B PH42-45-1A  
 WR-28  26.5-40.0 90 Degree E-bend PE28-45-1B PE28-45-1A  
90 Degree H-bend PH28-45-1B PH28-45-1A  
 WR-22  33.0-50.0 90 Degree E-bend PE22-45-1B PE22-45-1A  
90 Degree H-bend PH22-45-1B PH22-45-1A  

30 Degree Bends

Waveguide Size Frequency Range Type of Bend Part Number for Be-Copper Alloy Part Number for Aluminum Alloy Dimension A
WR-284 2.60-3.95 90 Degree E-bend PE284-30-1B PE284-30-1A  
90 Degree H-bend PH284-30-1B PH284-30-1A  
WR-229 3.30-4.90 90 Degree E-bend PE229-30-1B PE229-30-1A  
90 Degree H-bend PH229-30-1B PH229-30-1A  
 WR-187  3.95-5.85 90 Degree E-bend PE187-30-1B PE187-30-1A  
90 Degree H-bend PH187-30-1B PH187-30-1A  
 WR-159  4.90-7.05 90 Degree E-bend PE159-30-1B PE159-30-1A  
90 Degree H-bend PH159-30-1B PH159-30-1A  
 WR-137  5.85-8.20 90 Degree E-bend PE137-30-1B PE137-30-1A  
90 Degree H-bend PH137-30-1B PH137-30-1A  
 WR-112  7.05-10.0 90 Degree E-bend PE112-30-1B PE112-30-1A  
90 Degree H-bend PH112-30-1B PH112-30-1A  
 WR-102  7.00-11.0 90 Degree E-bend PE102-30-1B PE102-30-1A  
90 Degree H-bend PH102-30-1B PH102-30-1A  
 WR-90  8.20-12.4 90 Degree E-bend PE90-30-1B PE90-30-1A  
90 Degree H-bend PH90-30-1B PH90-30-1A  
 WR-75  10.0-15.0 90 Degree E-bend PE75-30-1B PE75-30-1A  
90 Degree H-bend PH75-30-1B PH75-30-1A  
 WR-62  12.4-18.0 90 Degree E-bend PE62-30-1B PE62-30-1A  
90 Degree H-bend PH62-30-1B PH62-30-1A  
WR-51 15.0-22.0 90 Degree E-bend PE51-30-1B PE51-30-1A  
90 Degree H-bend PH51-30-1B PH51-30-1A  
 WR-42  18.0-26.5 90 Degree E-bend PE42-30-1B PE42-30-1A  
90 Degree H-bend PH42-30-1B PH42-30-1A  
 WR-28  26.5-40.0 90 Degree E-bend PE28-30-1B PE28-30-1A  
90 Degree H-bend PH28-30-1B PH28-30-1A  
 WR-22  33.0-50.0 90 Degree E-bend PE22-30-1B PE22-30-1A  
90 Degree H-bend PH22-30-1B PH22-30-1A  

Penn Engineering Sales and Information
Phone: 661-295-2080
Fax: 661-295-2084

Postal Address:
29045 Avenue Penn
Valencia, California U.S.A.

Sales E-mail: sales@pennengineering.com
Technical Information: tech@pennengineering.com