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Microwave Absorber Board Level Shield global solutions : local support ™ Microwave Absorber Board Level Shield Laird Technologies Microwave Absorber Board Level Shields (ABLS) technology for EMI shielding solutions utilizes a combination of QZorb RFSW surface wave absorbers and board level shields to create a product design to meet specific application requirements. Q-Zorb RFSW surface wave absorbers are thin, magnetically loaded elastomeric sheets designed to provide emi protection at high angles of incidence for surface wave attenuation. Board level shields provide isolation of board level components, minimizes crosstalk and susceptibility without impacting system speed. This combination product incorporates a stamped metal housing and an absorbing elastomer that is designed to meet the specific needs of your application. Features and Benefits: • ABLS has enhanced shielding effectiveness at frequencies from 1 – 40 Ghz • Use inside of microwave housings to reduce internal resonance and lower the "Q" of the microwave cavity • Minimizes crosstalk and susceptibility without impacting system speed • Effective in isolating antennas from ground plane reflections • Custom shapes and other material options are available • Provides isolation of board level components • Low height down to 0.04” (1,0mm) to accommodate mother/daughter board configurations • Secure cover design is ideal for applications that could be subject to shock and vibration Applications • Any application requiring board level shielding • Wireless handsets, PC cards • High frequency communications equipment, basestations • PDAs • Desktop and laptop computers For sales information: In Asia please telephone +86 755 2714 1166 In Europe please telephone +49 8031 2460 0 In the USA please telephone +1-800-843-4556 • Portable and non-portable electronic devices or visit: www.lairdtech.com Engineered antenna, emi, telematics and thermal applications Microwave Absorber Board Level Shield Microwave Absorbers Material Options Q-Zorb RFSW surface wave absorbers are thin, magnetically loaded elastomeric sheets designed to provide attenuation at high angles of incidence for surface wave attenuation. They are nominally manufactured in the thickness range of 0.010” to 0.125” (0.4mm to 3.2mm). The elastomeric-based absorbers are available in a variety of choices. All of the parts utilized in our ABLS product offering utilize our silicone elastomer which has a wide temperature range (-60OF – 350OF). Each of these products offers a UL-V0 rating and is RoHS compliant. In the ABLS product offering, the absorber material is acting to reduce internal resonances which often occur at higher frequencies. Although the data listed below shows electrical performance from 2-18 GHz, the material offers shielding effectiveness from 1-40 GHz. Part Number Product Category Elastomer Type Thickness in (mm) Frequency (GHz) Range 2960 RFSW Silicone 0.010” (0.3) 12-18 2234 RFSW Silicone 0.020” (0.5) 12-18 2236 RFSW Silicone 0.030” (0.8) 12-18 2238 RFSW Silicone 0.040” (1.0) 8-12 2296 RFSW Silicone 0.050” (1.3) 8-12 2240 RFSW Silicone 0.060”(1.5) 8-12 2257 RFSW Silicone 0.080” (2.0) 4-8 2272 RFSW Silicone 0.100” (2.5) 2-4 2242 RFSW Silicone 0.125” (3.2) 2-4 Typical Material Performance Typical Reflection Loss Properties of Q-Zorb Standard Surface Mount Shields Two-Piece 0 Two-piece board level shields offer users the flexibility to inspect or repair shielded components without having to risk board damage by removing the entire shield or incur any tooling costs. Covers snap on and off with ease, which makes repair of the component under the shield quicker and easier and reduces board re-work. Two-piece shields are available unassembled*, and are designed to survive drop, shock and no-rattle tests. BMIS-201-F BMIS-202-F .2532 (163.102) .4022 (259.212) 10 2234 2238 12 14 2016 2960 16 18 Reflection Loss (dB) -20 Overall Frame Tape Width Tape Pitch Parts Per Reel Weight (FR) Weight (CY) .538 x .476 .100 24 mm 20 mm 1000 0.3 g 0.2 (13.66 x 12.10) (2.54) .650 x .650 (16.50 x16.50) .142 (3.60) 32 mm 24 mm 700 0.5 g 0.4 44 mm 32 mm 300 1.0 g 0.8 BMIS-203-F 1.0332 (666.162) 1.032 x 1.032 (26.21 x 26.21) .200 (5.08) BMIS-204-F 1.5482 (998.562) 1.260 x 1.260 (32.00 x 32.00) .236 (6.00) 44 mm 36 mm 225 1.6 g 1.1 BMIS-205-F 1.4612 (942.502) 1.500 x 1.000 (38.10 x 25.40) .236 (6.00) 56 mm 44 mm 250 1.6 g 1.1 BMIS-206-F 1.8792 (1212.392) 1.450 x 1.326 (36.83 x 33.68) .200 (5.08) 300 1.5 g 1.3 BMIS-209-F 2.9972 (1933.362) 1.747 x 1.747 (44.37 x 44.37) .384 (9.75) 56 mm 56 mm 120 2.0802 (13422) 1.732 x 1.201 (44.02 x 30.50) .118 (3.00) 56 mm 40 mm 450 BMIS-210-F 8 -15 Overall Dimension 56 mm 6 -10 Standard Two-Piece Board Level Shields Surface Area 4 -5 *Pre-assembly is an option. Consult Sales. Part Number 2 40 mm 3.2 g 1.0 g -25 -30 Frequency (GHz) 2240 *Please consult sales and order the standard shield part number (BMIS-XXX-X) and note the addition of the absorber part number (XXXX). 3.1 2.6 Any information furnished by Laird Technologies and its agents is believed to be accurate and reliable. Responsibility for the use and application of Laird Technologies materials rests with the end user since Laird Technologies and its agents cannot be aware of all potential uses. Laird Technologies makes no warranties as to the fitness, merchantability, or suitability of any Laird Technologies materials or products for any specific or general uses. Laird Technologies shall not be liable for incidental or consequential damages of any kind. All Laird Technologies products are sold pursuant to the Laird Technologies domestic terms and conditions of sale in effect from time to time, a copy of which will be furnished upon request. EMI-SPEC-MICRO-ABSORBLS-0706 global solutions : local support ™