File:HYH532BZ1.5 circulator teardown.jpg

English: HYH532BZ1.5ː RF Isolator|Circulator 925 – 960 MHz;

"A junction circulator is a 3-port device that permits flow of microwave energy in one direction only, e.g. from port 1 to 2, 2 to 3, and 3 to 1. Each port is connected to one arm of a symmetrical Y junction that is coupled to magnetically biased ferrite material. When one of the ports is terminated (matched condition) the other two ports are isolated in the reverse direction. Thus an isolator is a circulator with a matched termination, usually integral to the unit, and by convention on port 3."

Junction circulator internal structureː

1. First row, left to right:

• Upper magnet

• Upper magnet ground plane

• Dielectric sleeve + Upper ferrite disc

• Inner conductor – Y junction conductor

• Dielectric sleeve + Lower ferrite disc

• Lower magnet ground plane

• Lower magnet

2. Second row:

• Upper pole piece

• Aluminium disc

• Lower pole plate - the metal case

Manufactured by Shenzhen Huayang Technology Development Co., Ltd.(HTD)