China 891-903MHz/936-948MHz Cavity Diplexer Microwave Cavity Duplexer Diplexer Manufacture and Factory

891-903MHz/936-948MHz Cavity Diplexer Microwave Cavity Duplexer Diplexer

Short Description:

• The Diplexer with 2 cavity design,the design is simple and compact
• The Diplexer with 2 stopband filters are used
• Duplexer, 2 cavity, 891-903MHz,936-948MHz
• Model Number:KDX-897^942-01S
keenlion can provide customize Cavity Duplexer, free samples, MOQ≥1
Any inquiries we are happy to reply, pls send your questions and orders.

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Product Detail

Product Tags

AdvancedCavity Diplexerfor 891-903MHz/936-948MHz frequency bands

• Cavity Diplexer splits 891-903 MHz (Rx) and 936-948 MHz (Tx) with ≤1 dB insertion loss each side

• ≥65 dB rejection across opposite bands • VSWR ≤1.3:1 on both ports • 10 W power handling • SMA-F terminations

• -20 °C to +65 °C operating range • Black-paint aluminium housing • Samples in stock • Competitive factory prices

• Professional after-sales support • 20-year Chengdu manufacturing heritage • Full custom frequency, connector & mounting options

Cavity Duplexer Main Indicators

Number	Items	Specifications
1	Cavity Diplexer	Rx	Tx
2	Centre Frequency	897MHz	942MHz
3	Passband	891-903MHz	936-948MHz
4	Insertion Loss	≤1dB	≤1dB
5	VSWR	≤1.3:1	≤1.3:1
6	Rejection	≥65dB @936-948 MHz	≥65dB @891-903 MHz
7	Impedance	50 Ohms
8	Input & Output Termination	SMA Female
9	Operating Power	10W
10	Operating Temperature	-20℃ To +65℃
11	Material	Aluminum
12	Surface Treatment	Black Paint
13	Size	As below ↓（±0.5mm） Unit/mm

Outline Drawing

Precise Electrical Response

Our891-903MHz/936-948MHzCavity Diplexer uses quarter-wave coaxial cavities tuned to 897 MHz (Rx) and 942 MHz (Tx). Each Cavity Diplexer is swept on a 20 GHz VNA to guarantee insertion loss ≤1 dB and VSWR ≤1.3:1 on both paths, while rejection ≥65 dB across the opposite band ensures the Cavity Diplexer eliminates Rx/Tx self-quieting in GSM-R, PMR or cellular repeater chains.

Rugged Mechanical Build

The 891-903MHz/936-948MHz Cavity Diplexer is milled from one-piece aluminium, black-paint finished and sealed with Viton O-rings, giving IP54 protection and stable performance from -20 °C to +65 °C. SMA-F connectors are torque-sealed; the Cavity Diplexer can be wall-mounted with two M3 holes or supplied with custom brackets.

Factory Backbone – Why Keenlion

20-year Chengdu plant machines, plates, tunes and tests every Cavity Diplexer under one roof

7-day prototype lead, 21-day volume schedule

Insertion loss, VSWR and rejection verified on signed VNA plot

Competitive factory prices with no distributor margin

Free samples shipped in 48 hours

Professional after-sales support for life of the Cavity Diplexer

Global Market Fit

When engineers need a reliable Cavity Diplexer for 900 MHz FDD split, the 891-903MHz/936-948MHz Cavity Diplexer answers with metal, not software. Emailsales@keenlion.com for data sheets, CAD files and factory pricing on the Cavity Diplexer—ship tomorrow, lock your duplex today.

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