Overview
Specifications & Details
Datasheets & Downloads
Videos

Focus provides the deepest portfolio of wideband fundamental and harmonic passive tuners. Passive impedance tuners generate controllable reflection factor (Impedance) across the smith chart over a given frequency range. Focus uses two basic technologies:

From 100MHz to 120GHz we use the slide screw technique in which a reflective probe is inserted into a low loss slotted transmission line.
For frequencies from 10MHz to 170MHz we use a lumped element technology, whereby variable capacitors are connected with optimized lengths of coaxial cable. To view our Low Frequency Tuners, Click Here!

Most Focus Passive Tuners use long lasting RF probes which are designed for optimal tuning accuracy and are free of spurious resonances. The combination of multiple probes provide ultra wideband coverage in one single tuner. All Focus Passive Tuners are LAN controlled and include on-board impedance synthesis firmware.

For more information on Passive Tuners, visit our youtube channel!

Manufactured By: Focus Microwaves

Sub 18GHz Tuners' List

Model	Min Frequency	Max Frequency	VSWR	Connector Type	Type	Datasheets
C101	0.1 GHz	1.0 GHz	≥ 10:1 (typ. 40:1)	7/16, APC-7, N	f0	PDF
C302	0.2 GHz	3.0 GHz	≥ 10:1 (typ. 30:1)	7/16, APC-7, N	f0
C304	0.4 GHz	3.0 GHz	≥ 10:1 (typ. 40:1)	7/16, APC-7, N	f0
C308	0.8 GHz	3.0 GHz	≥ 10:1 (typ. 20:1)	7/16, APC-7, N	f0	PDF
C606	0.6 GHz	6.0 GHz	≥ 30:1 (typ. 40:1)	7/16, APC-7, N	f0	PDF
C606S	0.6 GHz	6.0 GHz	≥ 30:1 (typ. 40:1)	7/16, APC-7, N	f0 (Shielded)	PDF
C804	0.4 GHz	8.0 GHz	≥ 10:1 (typ. 20:1)	7/16, APC-7, N	f0	PDF
C806	0.6 GHz	8.0 GHz	≥ 50:1 (typ. 80:1)	3.5mm	f0	PDF
C806S	0.6 GHz	8.0 GHz	≥ 50:1 (typ. 80:1)	3.5mm	f0 (Shielded)	PDF
C806R	0.6 GHz	8.0 GHz	≥ 30:1 (typ. 35:1)	7/16, APC-7, N	f0	PDF
C806RS	0.6 GHz	8.0 GHz	≥ 30:1 (typ. 35:1)	7/16, APC-7, N	f0 (Shielded)	PDF
C807	0.8 GHz	7.0 GHz	≥ 30:1 (typ. 35:1)	7/16, APC-7, N	f0
C808	0.8 GHz	8.0 GHz	≥ 30:1 (typ. 40:1)	7/16, APC-7, N	f0	PDF
C1260	6.0 GHz	12.0 GHz	≥ 40:1 (typ. 60:1)	3.5mm	f0
C1804	0.4 GHz	18.0 GHz	≥ 30:1 (typ. 40:1)	APC-7, N	f0	PDF
C1806	0.6 GHz	18.0 GHz	≥ 10:1 (typ. 20:1)	APC-7, N	f0	PDF
C1806S	0.6 GHz	18.0 GHz	≥ 10:1 (typ. 20:1)	APC-7, N	f0 (Shielded)	PDF
C1807	0.7 GHz	18.0 GHz	≥ 10:1 (typ. 25:1)	APC-7, N	f0
C1808	0.8 GHz	18.0 GHz	≥ 10:1 (typ. 15:1)	APC-7, N	f0	PDF
C1818	1.8 GHz	18.0 GHz	≥ 10:1 (typ. 20:1)	APC-7, N	f0	PDF
L302	0.2 GHz	3.0 GHz	10:1 ~ 100:1	7/16, APC-7, N	f0, 2f0
L804	0.4 GHz	8.0 GHz	10:1 ~ 100:1	7/16, APC-7, N	f0, 2f0
L808	0.8 GHz	8.0 GHz	10:1 ~ 100:1	7/16, APC-7, N	f0, 2f0
L1007	0.7 GHz	10.0 GHz	10:1 ~ 100:1	APC-7, N	f0, 2f0
L1208	0.8 GHz	12.0 GHz	10:1 ~ 100:1	APC-7, N	f0, 2f0	PDF
L1218	1.8 GHz	12.0 GHz	10:1 ~ 100:1	APC-7, N	f0, 2f0
L1804	0.4 GHz	18.0 GHz	10:1 ~ 100:1	APC-7, N	f0, 2f0	PDF
L1807	0.7 GHz	18.0 GHz	10:1 ~ 100:1	APC-7, N	f0, 2f0
L1808	0.8 GHz	18.0 GHz	10:1 ~ 100:1	APC-7, N	f0, 2f0	PDF
L1818	1.8 GHz	18.0 GHz	10:1 ~ 100:1	APC-7, N	f0, 2f0	PDF
M804	0.4 GHz	8.0 GHz	10:1 ~ 100:1	7/16, APC-7, N	f0, 2f0, 3f0
M807	0.7 GHz	8.0 GHz	10:1 ~ 100:1	7/16, APC-7, N	f0, 2f0, 3f0	PDF
M808	0.8 GHz	8.0 GHz	10:1 ~ 100:1	7/16, APC-7, N	f0, 2f0, 3f0
M1007	0.7 Ghz	10.0 GHz	10:1 ~ 100:1	APC-7, N	f0, 2f0, 3f0	PDF
M1204	0.4 GHz	12.0 GHz	10:1 ~ 100:1	APC-7, N	f0, 2f0, 3f0
M1208	0.8 GHz	12.0 GHz	10:1 ~ 100:1	APC-7, N	f0, 2f0, 3f0
M1218	1.8 GHz	12.0 GHz	10:1 ~ 100:1	APC-7, N	f0, 2f0, 3f0
M1804	0.4 GHz	18.0 GHz	10:1 ~ 100:1	APC-7, N	f0, 2f0, 3f0
M1807	0.7 GHz	18.0 GHz	10:1 ~ 100:1	APC-7, N	f0, 2f0, 3f0	PDF
M1818	1.8 GHz	18.0 GHz	10:1 ~ 100:1	APC-7, N	f0, 2f0, 3f0	PDF
M1808	0.8 GHz	18.0 GHz	10:1 ~ 100:1	APC-7, N	f0, 2f0, 3f0	PDF

Sub-18GHz Tuners Brochure

View YouTube Channel

Focus Microwaves - Sub-18GHz Tuners