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 WR-28

 

index.htm Up WR-22 WR-90 WR-62 WR-10 WR-112 WR-137 WR-284 WR 12 thru 3 WR-19 WR-229 WR-34 WR-51 WR-187 WR-42 WR-28 WR-75 WR-15 WRD

 

 

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Last modified:
APR 22
  2025
ApTeC Electronics 
Address:
PO BOX 101,
El Segundo CA  
90245-0101 USA   
Telephone
310-640-7262
 
 
 We are closed most Fridays   
Electronic mail : General Information: stu@aptecelectronics.com         Webmaster: stu@aptecelectronics.com
 
 

CAGE code 4K3T8   

 

 
Review Shopping Cart

 

WR-28   26.5 - 40 GHz Waveguide parts R (Ka) Band    ID: .280" x .140"

 

 This table is sorted manually by manufacturer. NOTE:  Send us an email if you would like a button added to a specific item. You may also request picture. All straight sections have UG-500 flanges unless other wise noted.

 
APTEC . ELECTRONICS

      
WAVEGUIDE . Inventory Price List

price

qty loc buy now
Model Manufacturer Item Description

ea. US $

.

28-1022S

A-WAVE WR-28 to WR22 2" taper section (.750" square flange both ends)

200

3 wr28

28-1201

A-WAVE WR-28 R-band 1" section

75

SOLD

28-1201.3

A-WAVE WR-28 R-band 1.3" section

75

.

28-1202

A-WAVE WR-28 R-band 2" section

75

SOLD

28-1790

Aerowave Inc. WR-28 R-band twist

150

1

28-1815

Aerowave Inc. WR-28 R-band 15° degree bend 

125

3nu

28-1830

Aerowave Inc. WR-28 R-band 30° bend 

125

3nu

28-1860

Aerowave Inc. WR-28 R-band 60°  bend 

125

1nu

28-19/35

Aerowave Inc. WR-28 R-band bend -image

100

4 rband

28-2010

Aerowave Inc. WR-28 R-band load 2.25" total length  

200

1 rband

28-2160 10dB

Aerowave Inc. WR-28 R-band fixed 10 dB  attenuator  

175

SOLD .

28-2990/38.0 GHz

Aerowave Inc. WR-28 R-band 4 port unused

call

CAR75

169A/599

alpha industries  WR-28 Fo=38 GHz isolator (nu)

250

mmw

169A/599

alpha industries  WR-28 Fo=29.5  GHz isolator -image-

200

CAR75

169B/719

alpha industries  WR-28 Fo=44.5  GHz isolator

200

1

522A/599

alpha industries  WR-28 Fo=38 GHz var. atten. 

250

1

526A/599

alpha industries  WR-28 Fo=29.5 GHz var. atten. -image-

250

1

526B/719

alpha industries  WR-28 Fo=44.5 GHz var. atten. 

250

1

580A/599

alpha industries  WR-28 load. 2.5 inch

150

CAR75

580B/719

alpha industries  WR-28 load. 2.5 inch

150

1

600A/599

alpha industries  WR-28 four port Fo 29.5 GHz -image-

350

1

600B/719

alpha industries  WR-28 four port Fo 44.5 GHz 

350

1

605A

alpha industries  WR-28 dual directional -image-

350

CAR75

660A/599

alpha industries 

WR-28 E- bend

100

1

688A/381/599

AI (TRG)  WR28 square to round adapter 1 inch silver (NEW)

200

1 WR28

690A-1.5/599

alpha industries  WR-28 straight section 1.5 inch

75

1

9102A-30

alpha industries  WR-28 Fo=29.5 GHz mixer -image-

350

1

9606B30HB

alpha industries  WR-28 Fo=44.5 GHz mixer 

350

1

A750

alpha industries / TRG  WR-28 Fo=35.0 GHz SPST switch 

350

1

28-400B

Arra WR-28 R-band e bend

150

sold .

28-420B

Arra WR-28 R-band h bend

150

4 in stodk

3-28-109/30  33GHz

Baytron / Aerowave / WR28 R band fixed attenuator?

150

wr28

3-28-602

Baytron / Aerowave / WR28 R band 2" section silver

150

SOLD

.

3KA-1

baytron WR-28 26-40 GHz var. atten. -image-

250

1

CMF719AH

central microwave co. WR28 device. Active mechanical tuning

call

 Rband .

AR28-3-7B-7B-C

CMT WR28 3 dB fixed attenuator 

100

2 Rband

LPTSL28-7A-A

CMT WR28 load -image-

200

2+ Rband

RDBCC28-K-F-20/20-1B-1B-C

CMT WR 28 Dual directional 20/20 dB coupler .292mm (f) -image-

550

2 RBand

RA28-K-F-1B-C

CMT WR28 to 3.5mm (f) adapter -image-

250

Rband SOLD

RA28-K-F-7B-C

CMT WR28 to 3.5mm (f) adapter -image- (qty 4+ available) choke flange

250

4 Rband in stock now

E plane bend

Demornay Bonardi WR-28 E bend used condition (same as DBD-224)

50

5 wr28dr

H plane bend

Demornay Bonardi WR-28 H bend used condition

50

3 wr28dr

3" section

Demornay Bonardi WR-28 three inch section w/flanges

100

(1)

3" twist (90 degree)

Demornay Bonardi WR-28 three inch twist Used condition

100

(2+) wr28dr

10 dB attenuator

Demornay Bonardi WR-28 26-40 GHz attenuator 10 dB fixed

175

(3)

no part number

Demornay Bonardi dual E H tuner used condition

150

1 CAR41
no part number Demornay Bonardi WR-28  square flange to round 2" long  2 available

150

(2) WR28

DBD??

Demornay Bonardi WR-28 26-40 GHz 45 degree twist 4" two choke flange 

75

(2)CAR90 .

DBD274-4

Demornay Bonardi WR-28 26-40 GHz 90 degree twist 4" one choke flange 

75

CAR90 .

DBD430-1

Demornay Bonardi D430-1 WR-28 26-40 GHz level set attenuator 0-100 dB 

350

SOLD .

HPT-28

Dorado WR-28 26-40 GHz TEE

175

2

HTW.28.28

Dorado WR-28 26-40 GHz Magic TEE

375

1
8010H12F000 opt E, J Dynamic Wave (formerly Hughes) 8000H TWTA WR-28 10 Watts 26.5-40 GHz -image-  -image-  -image-  -image-

call

.

R20LI

E & M Labs WR-28 26-40 GHz isolator (2+)

200

hs .

RM10

E & M Labs WR-28 R band isolator

call

mmw .

RM20

E & M Labs WR-28 magnetic device

call

. .

408-25

Electromagnetic Sciences, Inc. WR-28 w/g switch SPST w/ control. 33.5-36.5 GHz, 70KHz max. rep.

250

6 WR-28
18-26 no mfg (Generic) diode mount R band

150

mmw .
2" taper section WR22-WR28 no mfg (Generic) 2" taper painted black square flanges brass

150

(1) WR28dr
3" 45 degree twist no mfg (Generic) R- band twist

150

mmw .
4" 90 degree twist no mfg (Generic) R- band twist

100

(2( mmw .
1.25" 90 degree twist no mfg (Generic) R- band twist

150

mmw .
bend no mfg (Generic) R- band silver plated 90° bend 1.5" legs

100

wr28 (3+)
bend no mfg (Generic) R- band silver plated 90° bend 1.5 & 2.5" legs

100

wr28 (1)
H- bend no mfg (Generic) R- band gold plated 90 degree bend

100

mmw (2)
3.5" straight section no mfg (Generic) R- band silver plated 3.5" straight section

150

wr28
2" gold plated no mfg (Generic) R- band straight section

125

mmw
2" gold plated no mfg (Generic) WR 28 round to WR 22 square adapter

175

mmw
R-752D no mfg (Generic) 5985-00-084-8991 R- band coupler

425

mmw

0.94"

Generic WR28 0.940 inch section chrome choke flanges  

100

3

no p/n

Generic WR28 1 inch section gold 

150

3

no p/n

Generic WR28 1.3 inch flexible section 

150

1

no p/n

Generic WR28 1.75 inch 90° twist gold

175

2

no p/n

Generic WR28 - WR22 90° H bend gold (2" X 2.75")

175

2

10" section

Generic WR28 - ten inch Ag plated straight section 

150

1

1.7" section

Generic WR28 - 1.7  inch straight section gold plated 

100

2

4.00" section

Generic WR28 - 4.00 inch straight section gold plated 

100

1

4.25" section

Generic WR28 - 4.25 inch straight section 

100

1

5" flex. section

Generic WR28 - five inch Ag plated flexible section 

150

2

6.375" section

Generic WR28 - 6 3/8 inch straight section Ag pl.

150

1

8.0" section

Generic WR28 - 8 inch straight section Ag pl.

150

1

no part no.

Generic WR28 - level set attenuator used

200

CAR88

LPTSL28

Generic WR28 - termination choke flange, total length 1.0".painted

200

2
3.1" flex section generic WR28 R ag plated flexible waveguide

500

(3) WR28 dr

6032820 generic (HAC) WR28 R band tunable filter au plate (20 tuning  screws)

500

(5) WR42 dr

HP 11970A Hewlett-Packard mixer -click here-

-

-
HP R281B Hewlett-Packard WR-28 precision adapter 2.4 mm (male)  26.5-40 GHz.

750

1
HP R382A Hewlett-Packard WR-28 precision rotary vane variable attenuator 26.5-40 GHz.

900

4

HP R362A

Hewlett-Packard WR-28  low pass filter pass 26.5-40 cutoff 47GC

400

2+
HP R422A Hewlett-Packard WR-28 crystal detector

375

3+ avail.
HP R486A Hewlett-Packard WR-28 thermistor 

950

2+ avail.

HP R532A

Hewlett-Packard WR-28 frequency meter

425

3

HP R752A

Hewlett-Packard WR-28 R752A 3 dB coupler -image-

500

2 in stock now

HP R752C

Hewlett-Packard WR-28 R752C 10 dB  directional coupler

500

Rband (2)+

HP R752D

Hewlett-Packard WR-28 R752D 20 dB coupler -image-

500

(4)

HP R752D

Hewlett-Packard R752D 20 dB coupler round flange

500

(1) QBAND

HP 814B + HP-R815B

Hewlett-Packard WR-28 R815B slotted sect. & HP446B untuned probe (2)

500

dd2 BC9

HP R815B

Hewlett-Packard WR-28 R815B slotted section 

call

.

HP R870A

Hewlett-Packard WR-28 slide screw tuner 

250

2

HP R914B

Hewlett-Packard WR-28 moving load 

275

2+

HP R920B

Hewlett-Packard WR-28 adjustable short 

250

SOLD .

R1514

Hitachi precision variable attenuator (crack in plastic) -image- round flange

450

1 DD4d5

DKa-1

Honeywell WR-28 frequency doubler +16 dBm in, +4 dBm out

350

SOLD SOLD

no p/n

Generic / Hughes WR22 - WR28 2 inch adapter gold  -image-

225

2

no p/n

Generic / Hughes WR28 H bend gold  -image-

225

2
15321H-2020 Hughes WR-28 full band Isolator 

425

wr42 tub
45111H-2000 Hughes WR-28 full band Isolator 

400

SOLD SOLD
45141H-2000 Hughes

WR-28 junction isolator 20 dB isol. 35-37 GHz

150

1
45161H-1000 Hughes

WR-28 circulator, 20 dB isol. 32.5-34.5 GHz UG381 round flange -image-

300

1
45391H-2100 Hughes WR-28 5 port

400

wr28 
45451H-2210 Hughes WR-28 to WR-22 taper adapter 2.0 inches 

235

SOLD SOLD
45611H-2000 Hughes WR-28 termination

300

1
45611H-1000 Hughes WR-28 primary standard termination

call

primary standard? call
47241H-2007 Hughes / Millitech WR28 Gunn osc. 27 - 35 GHz w/isolator UG-599/U -image

500

SOLD SOLD
47241H-2615 Hughes / Millitech WR28 Gunn osc. 28 GHz w/regulator

750

WR28

1123

Kevlin Mfg. Co. WR-28 26-40 GHz rotary joint -image-

250

SOLD .

28IR

M Wave  Design WR-28 isolator

300

1

601

Ma-Com WR-28 one inch section silver color

100

6

no p/n 

Ma-Com WR-28  30° H bend silver color

100

4

no p/n 

Ma-Com WR-28  60° H bend silver color

100

6

no p/n 

Ma-Com WR-28  90° E bend silver color

100

4

no p/n

MBF Microwave WR-28 one inch chrome section w/ choke flanges

100

2

no p/n

MBF Microwave WR-28 2 1/4 inch chrome section w/ choke flanges

100

1

900-5-4/112I

MBF Microwave WR-28 transfer switch 28 volt

400

2

28AT69

MDL WR-28 level set attenuator?

400

wr28

28SR16-1

MDL WR-28 SPDT switch NOS 28V?

500

CAR113

175-A38

Microlab/FXR WR-28 20 dB fixed w/g attenuator

125

2
2623B Microlab/FXR WR-28 R band e-bend (round flange)

75

2

U151F

Microlab/FXR WR-28 26-40 GHz variable attenuator

200

4+ (2) CAR89

U206CF

Microlab/FXR WR-28 26-40 GHz

200

1  in stock now

U312F

Microlab/FXR WR-28 26-40 GHz E & H plane micrometer tunable device 

250

2+ in stock now

U312BF

Microlab/FXR WR-28 26-40 GHz tunable device 

250

2

U312CF

Microlab/FXR WR-28 26-40 GHz tunable device -image-

250

2

U410A

Microlab/FXR WR-28 26.5-40 GHz direct reading freq. meter. (round flange) used condition

250

1 .
U510AF Microlab/FXR R band standard mismatch VSWR=1.00

200

1
U510BF Microlab/FXR R band standard mismatch VSWR=1.05

200

1
U610C Microlab/FXR R band 10 dB directional coupler round flange

350

2
U610D Microlab/FXR WR-28 R band standard missmatch VSWR=1.20  

200

1
U610DF Microlab/FXR WR-28 R band 10 dB directional coupler 

350

1

U623BF

Microlab/FXR WR-28 26-40 GHz e bend

150

hs .

U624BF

Microlab/FXR WR-28 26-40 GHz h bend

100

(2) wr28dr

405A

Microline WR-28 26.5-40 GHz 20 dB 3-port crossguide coupler

200

(3)  
1022 microwave associates WR-28 R band lstanding wave detector

350

CAR78
1023A microwave associates WR-28 R band level set attenuator

150

Rband
513A microwave associates WR-28 R bandcrystal mount

150

Rband
518A microwave associates WR-28 R band frequency meter

175

CAR75
559 microwave associates WR-28 R band E H Tuner

250

Rband
719 microwave associates WR-28 R band high power load

250

Rband
MA759 microwave associates WR-28 R band magic tee

250

Rband
MA819 microwave associates WR-28 R band 45 degree bend

100

mmw .
MA961 microwave associates WR-28 R band detector

250

mmw .
45421H2190 Millitech WR-28  R band E bend (au)

175

WR28 (1)
45511H-2002 Millitech remote controlled WR-28 switch

call

1 ..
45721H-2000 Millimeter Wave Products (Hughes) WR-28  R band attenuator

1000

DD2 sold
CDA-22-020139 Millitech AMC-20-S0000A with CTI XPDRO-14224 17950 MHz source assembly

call

(2) mmw. .
CGP-28-S06S0 Millitech WR-28  R band six dB coupler (al)

250

WR28 (2
CGP-28-S10S0 Millitech WR-28  R band ten dB coupler (al)

250

WR28 (2
CL3-28-S1000 Millitech WR-28  R band ten dB high directivity coupler (al)

350

WR28 (2
CRT-28-250R Millitech WR-28  R band to .250 round

call

wr28 VM (2) .
DRF-28-S0000 Millitech WR-28 R BAND PRECISION freq meter -image- -image- -image- -image- -image

900

mmwv QvMD5 (2availalble?) 
FXA-28-S03G0 Millitech WR-28 R BAND 3 dB attenuator -data-

175

wr28 (2+)
FXA-28-S10G0 Millitech WR-28 R BAND 10 dB attenuator -data-

250

wr28
JFD-28-SI1SP Millitech WR-28 R BAND isol. CF=29.2 -image-

295

0 SOLD
MWS-28-0BP3W Millitech WR-28 R BAND remote w/g switch w/driver  -image- -image-

750

WR28 tub (2) sold
MWS-28-0BP3W10381 Millitech WR-28 R BAND remote w/g switch w/driver  -image- -image-

850

mmw (1+) sold
POL-28-250R Millitech RHCP round polarizer 

CALL

WR28 VM .
QFB-2800-BH Millitech WR-28  Ka band filter (al)

200

WR28 (2+
SWS-28-S0100 Millitech WR-28  R band 1.00" straight section (au)

100

WR28 (2+
SWS-28-S0200 Millitech WR-28  R band 2.00" straight section (au)

100

WR28 (10+
TRM-28F Millitech WR-28  termination 2"

175

wr28
WGB-28-SE900 Millitech WR-28  R band E bend (au)

175

WR28 (1) 
WGB-28-SH900 Millitech WR-28  R band H bend (au)

125

WR28 (10+

V357

Narda WR28 twist  image

150

. .

V727

Narda WR28 level set attenuator 

300

1
RYG2032 Pamtech. WR-28 circulator

100

(5 avail) WR-28
3251 PENN ENG. H bend

100

CAR77
ML203038-001 Philips 10636-0000 downconverter band 2/4

150

(2) TR70
ML203938-001 Philips 10638-0000 upconverter band 2/4

150

(1) TR70
3362 PRD WR-28  square flange to round 1.7" long 

150

(2) WR28
3362 PRD WR-28  square flange to round 1.7" long 

150

(2) WR28
616 PRD WR-28  round flange straight section 1.5"  2 available

150

(2) WR28
A414-10F1 PRD WR-28  directional coupler -similar image-  2 available

250

(3) WR28
A414-10FS1 PRD WR-28  directional coupler -image-

250

WR28
45111Q-2000 Quinstar WR-28  Ka band full band isolator

250

WR28 tub (6
45310-2206 Quinstar WR-28  Ka band six dB coupler (al)

250

WR28 (1
453210-2210 Quinstar WR-28  Ka band ten dB coupler (al)

250

WR28 (1
453210-2310 Quinstar WR-28  Ka band ten dB high directivity coupler (al)

350

WR28 (1
QAF-A06000 Quinstar WR-28  Ka band six dB fixed attenuator (AU)

125

WR28 (1

13A-26

Scientific Atlanta WR28 mixer

150

2

3.0-26/.1

Scientific Atlanta WR28 round flange gold plated load? 3.75" long

200

1

KA-2x

Spacek Labs WR28 passive multiplier (13-20 26/40 GHz)

call

1 CAR108 .

DBD-440A-20

Systron Donner WR28 20 dB attenuator

200

2

DBD-224

Systron Donner WR-28 E bend 

100

1 wr28dr

DBD-272

Systron Donner WR-28 45 TWIST 3" 

100

1 CAR112

DBD-631-20

Systron Donner / Demornay Bonardi WR28 20 dB three port crossguide coupler

200

2

DBD-650

Systron Donner  WR28 magic T

375

1

no p/n

TRG WR28 1.25 inch 90° twist

150

2

520

TRG WR28 variable uncalibrated attenuator 

250

1

580A/599

TRG  WR-28 termination 26-40 GHz 0.5 watt

250

. .

A110

TRG  WR-28 isolator 35 GHz

150

CAR77

A510 -53

TRG  WR-28 precision variable attenuator round flange

700

VMd9

A528

TRG  WR-28 phase shifter 0-360 deg. sq. flange

1250

VMd9

A580

TRG  WR-28 termination 26-40 GHz 0.5 watt

250

. .

B660

TRG  WR-28 90 degree E bend Ag

175

wr28 VM .

unk

ultramicrowave WR-28 round to square adapter (used) 

100

 WR-28

1005-A

waveline WR-28 R BAND variable attenuator

250

 WR-28

101016

waveline WR-28 R BAND panel feedthru

75

qty .

1032

waveline WR-28 R BAND E bend 

150

CAR57

1043

waveline WR-28 R BAND 12" straight section 

150

SOLD .

1068

waveline WR-28 R BAND 2.5" long panel feed-through 

150

3 WR-28

1074-20

waveline WR-28 R BAND dir. cplr. 20 dB 

350

CAR57

1083

waveline WR-28 R BAND slide screw tuner micrometer probe 

250

CAR114

35WR28KF

Wiltron / Antirsu WR-28 precision w/g - coax adapter 26-40 GHz.-data-

675

2 in stock now!

 

 

Last modified: see above

APTEC ELECTRONICS 

Address: PO BOX 101, El Segundo CA 90245-0101   
  Telephone: 310-640-7262       
 
CAGE code 4K3T8
Electronic mail : General Information: stu@aptecelectronics.com        
    Webmaster: stu@aptecelectronics.com