Switches-
Antenna Tuning Switches

Tuning includes both aperture and impedance options, which have been shown to improve antenna gain by 1.5 to 3 dB and enhance battery life since less current is required to deliver the same output power.

Aperture tuning changes the electrical length of an antenna to shift its resonance to the desired frequency band of operation. This is achieved by locating the tuner on the antenna and using it to switch various passive components to attain the desired resonant frequency. Antenna aperture tuners improve the total radiated power (TRP) and total isotropic sensitivity (TIS) by increasing the effective size of an antenna or by altering its radiation pattern.

Impedance tuning aims to match the impedance of the antenna with the impedance of the RF front-end, thus, optimizing the power transfer to the antenna. This is accomplished by locating the tuner along the RF line feeding the antenna and switching various passive components to match the RF feed and antenna impedances. Successful matching improves TRP and TIS.

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Aperture Tuning

Impedance Tuning

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  • NewPart NumberCartPDFDescription
    (Absorptive/
    Reflective)
    Frequency
    (GHz)
    Min.
    Frequency
    (GHz)
    Max.
    RON

    (Ω)
    COFF

    (fF)
    Vpk

    (V)
    Control
    Logic
    PackagePackage
    (mm)
    Pb-FreeGreen
    SKY5™–9256-701LF

    4xSPST Shunt0.66.01.114548MIPIQFN 10L1.5 x 1.1 x 0.45
    SKY19257-684LF

    SP4T0.13.8218942GPIOQFN 10L1.1 x 1.5 x 0.5
    SKY19256-701LF

    4xSPST Shunt0.66.01.114548MIPIQFN 10L1.5 x 1.1 x 0.45
    SKY19250-001

    SPST0.12.71.813980GPIOWLCSP 6 bump1.175 x 0.775 x 0.395
    SKY19249-686LF

    SP4T0.13.80.911040MIPIQFN 10L1.5 x 1.1 x 0.45
    SKY19247-686LF

    SP3T0.12.70.822037MIPIQFN 10L1.5 x 1.1 x 0.5
    SKY19245-686LF

    SP4T0.12.70.815039GPIOQFN 10L1.5 x 1.1 x 0.5
    SKY19244-686LF

    SP3T0.12.70.818039GPIOQFN 10L1.5 x 1.1 x 0.5
    SKY19243-686LF

    SPDT0.13.80.819542GPIOQFN 10L1.5 x 1.1 x 0.5
    SKY19237-001

    3xSPST0.72.72.119083MIPIWLCSP 11-bump1.6 x 1.6 x 0.5
    SKY19225-001

    SP4T0.12.71.328539GPIOWLCSP 11-bump1.6 x 1.6 x 0.55
    SKY19003-001

    2xSPST Shunt0.63.04.317080GPIOWLCSP 8-bump1.3 x 1.4 x 0.4