Couplers, hybrids, circulators, isolators, splitter and combiner 

Excellent isolator for the 13cm band of unknown type and brand

Feb. 9^th
2023

Retuning Circulator TELEDYNE MICROWAVE C-1S13T-3 to 868MHz

Feb. 5^th
2023

ALCATEL FERROCOM 20B1-31 circulator for 1700-2300MHz

Jan. 22^nd
2023

Circulator Kathrein France CHF 05080 for the 70cm band

Jan 15^th
2023

2.4GHz 200W Circulator based on Skyworks SKYFR-000827

Oct 25^th
2022

70cm High Power Circulator by retuning VALVO Band V Circulator

Oct 16^th
2022

Unknown 13cm Circulator

Aug 7^th
2022

2-6 GHz Isolator QUEST SM2060T02 characterized at 2.4GHz

June 2^nd
2022

EME UHF-LVR Power and SWR Meter 430-2400MHz

May 24^th
2022

Unknown 1.9-2.3GHz Isolator

Jan 22^nd
2022

2400MHz Wilkinson power splitter/combiner

Jan 1^st
2021

Isolator 1500-3000 MHz TMT H3930 for the 13cm band

Dec 21^st
2021

Isolator AEROTEK E60-1L1FM for the 13cm band

Dec 19^th
2021

Circulator SMT 1CY63 SMC1530 for the 13cm band

Nov 24^th
2021

S-Band Isolator Western Microwave Model ICS-3113

Oct 14^th
2021

S-band Isolator UTE Microwave Inc. CT-3240 OT

June 14^th
2021

S-band Isolator Microwave Associates 7K948

June 14^th
2021

Isolator ALCATEL FERROCOM 9A82-01 for the 23cm band

Dec. 15^th
2020

Isolator N70522774 from Xiangyu China for the 13cm band

Dec. 14^th
2020

23cm circulator C1214 and isolator I1214 from BONN Elektronik

Dec. 10^th
2020

Evaluation of low-cost Chinese directional couplers 800-2500MHz for the 23cm and 13cm bands

June 9^th
2020

Circulator Philips 2722 162 08591 for the 70cm band

May 17^th
2020

High Power 2320-2400 MHz quadrature hybrid coupler

Feb. 7^th
2020

S-band 90 degree hybrid coupler / branch line coupler

Feb. 5^th
2020

Peripheral Mode Isolator WMI PMI-4444-2 

Jan. 28^th 2020

Characterization of unknown 13cm band isolator

Jan. 28^th
2020

Characterization of unknown S-band isolator 3T-74/097 REV.B

Jan. 27^th
2020

Characterization of the Renaissance 3A4NCG circulator in the 13cm band

Jan. 26^th
2020

Marconi F1094-11 isolator for 1700-2400MHz

Jan. 25^th
2020

Unknown isolator for the 70cm band

Nov. 18^th
2019

Isolator N70522768 from Xiangyu China for the 23cm band

Nov. 17^th
2019

2400 MHz 90 degree hybrid coupler for instance for QO-100

July 27^th
2019

Description of the Isolator Melabs Model H350-153,4T

Sept 16^th 2018

Retuning a L-Band branch line coupler

May 10^th
2018

Description of the MASPRO 2SPN8 Satellite 2-way Splitter

Nov. 1^st
2017

Description of some surplus Power Dividers from Merrimac

July 1^st
2017

Please note that I retain the copyrights on all articles. If you want to make use of them other than for your personal purpose please send me a request to