RF Circulator
RF Circulator manufacturers based on frequency range, which can be used for various wireless technologies viz. WLAN, Zigbee, WiMAX, LTE, VSAT, cellular are listed below. There are different types based on layout drop-in, coaxial and waveguide type. Some are designed for narrowband applications and some are for broadband applications. To know more on circulator functions and applications refer our page on RF circulator in terminology section.
WLAN supports devices at various RF frequency bands viz. 2.4, 3.6 and 5 GHz. WiMAX supports various RF bands 3 to 3.6 GHz, 2.3 to 2.4 GHz, 2.5 to 2.7 GHz and 5.8GHz. Zigbee supports two frequency bands 868/915 MHz and 2450 MHz.LTE supports various frequency bands of 800 MHz,1800 MHz, 2600 MHz similar to used in cellular technologies GSM/CDMA/HSPA. VSAT supports C and Ku frequency bands. It covers vendors such as M/A COM,ditom,Wenteq,Trak Microwave,novamicro,VIDA RF,Channel Microwave etc.
Typical RF Circulator specifications
1. Frequency range
2. Isolation
3. Insertion Loss
4. VSWR
5. Connector type

source of figure: wikimedia commons, shows both isolator ( 2 port) and circulator (3 port)
Popular RF Circulator Manufacturers
Following are the popular RF Circulator manuacturers or vendors:
M/A COM Technology Solutions-www.macomtech.com
Model 7R196 RF circulator for DCS application.
ditom RF circulator
Model-D3C0780S Circulator, supports 700-800 MHz frequency of operation. Can be used for 4G/LTE technology for testing.
Contact Email-sales@ditom.com
Website-www.ditom.com
Wenteq Microwave circulator
Model series: F2588, supports 1700 to 2700 MHZ frequency. Other frequency range rf circulators are also available.
Contact Email-Sales@wenteqmicrowave.com
Website-www.wenteq.com
Trak Microwave circulator
Model-C3035/DA, supports 3 to 3.5 GHz frequency band. RF circulator for broadband use is also available.
Circulator Model-C105113/DC, supports 10.5 to 11.3 GHz band suitable for Ku band application.
Contact Email-sales@trak.com
Website-www.trak.com
novamicro circulator
Model- 0380CES, supports 3.4 to 4.2 GHz of operation, suitable for VSAT C band operation.
Contact Email-novamic@msn.com
Website- www.novamicro.com
VIDA RF circulator
Model-VCC-3742, supports 3700 to 4200 MHz band and useful for VSAT application.
Model-VCC-5865, supports 5925 to 6425 MHz band and useful for C Band VSAT.
Model- VCC-130145, supports 14 to 14.5 GHz band.
Contact Email-sales@vidarf.com
Website- www.vidarf.com
Channel Microwave rf circulator
Model-C121C circulator, supports 4.9 to 5.4 Ghz frequency range.
Model-C122C, supports 5.4 to 5.9 GHz.
Contact Email-sales@channelmicrowave.com
Website- www.channelmicrowave.com
To know RF ISOLATOR manufacturers, pl. go to our RF ISOLATOR Vendors➤➤.
Useful product vendors or manufacturers
RF components RF circulator RF isolator RF Mixer LTE providers WiMAX Hardware WLAN providers Zigbee gadgets T & M Companies Evaluation Boards GSM/GPRS MODEM Software vendors