Digi 90000797_A N e r a l i n f o r m a t i o n, T e n n a Specification s 2 d B i D i p o l e

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U S I N G T H E A N T E N N A

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General information. .

G e n e r a l i n f o r m a t i o n

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The module uses the same antennas to transmit and receive the 802.11b/g RF signal. An antenna switch is required to isolate the transmit signal from the receive signal. The antenna switch works by alternately connecting the antennas to either the transceiver transmit output or the transceiver receive input. To support this antenna sharing scheme, the module operates in half-duplex mode; receive and transmit operations do not occur at the same time.

Antenna switch The antenna switch is a digitally controlled 2.4 GHz, 50 ohm, multi-function solid state switch, controlled by software.

The switch can handle >28dBm of signal on the transmit port. The insertion loss of the antenna switch is <0.5dB and the receive to transmit port isolation is >23dB.

A n t e n n a s p e c i f i c a t i o n s : 2 d B i D i p o l e

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Attributes

Attribute	Property

Frequency	2.4~2.5 GHz

Power output	2W

DB gain	2 dBi

VSWR	< or = 2.0

Dimension	108.5 mm x 10.0 mm

Weight	10.5g

Temperature rating	-40°–+80° C

Part number	DG-ANT-20DP-BG

Dimensions	Note: Dimensions are provided for reference purposes only. The actual antenna
	might vary.

www.digiembedded.com

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Contents Digi Connect Wi-Wave Hardware Reference Page Contents FCC Part 15 Class B Documentation UpdatesG i i n f o r m a t i o n RelatedTo contact Digi International by Use Contact informationA t u r e s About the ModuleA t ’ s o n t h e m o d u l e ? Digi Connect Wi- Wave module edge connectorPin Type Wlan Mini Card Signal Digi Connect Wi- Wave module edge connector PinoutChannel Center frequency Frequency spread MHz MHz MHz B p e r i p h e r a l c o n t r o l l e r2 1 b / g m o d e s a n d c h a n n e l s Channel AllocationsL t a g e m o n i t o r R e s e t g e n e r a t o r L t a g e r e g u l a t o r sW e r A t ’ s o n t h e d e v e l o p m e n t b o a r d FeaturesDevelopment board Unpopulated components Digi Connect Wi-Wave module connector, J52 No connect or Jtagtdi Vcc3.3 Pin Type SignalD s Debug signal breakout header LEDsAlternative methods to trigger I t c h e s a n d r e s e t f u n c t i o n a l i t yW e r s u p p l y Input power jack, J3 Input power supplyHeader signal map A G B r e a k o u t H e a d e r , P 2Jtag breakout B p e r i p h e r a l i n t e r f a c e , J Debug breakout Header signal map SignalB u g b r e a k o u t h e a d e r , P 2 FL connectors L a n d R P S M a c o n n e c t o r sFL cables RP-SMA connectors For more information Necessary Conditions for Integration Using the AntennaConnect Wi-Wave antenna configurations Attributes T e n n a Specification s 2 d B i D i p o l eDimensions N e r a l i n f o r m a t i o nAntenna specifications 2 dBi Dipole Antenna strength radiation pattern diagram Attribute Band T e n n a Specification s 5 d B i D i p o l eColor Freq MHz Peak dBi Angle o Avg dBi Radiation pattern H-Plane 2.0 and 5.0 GHzRadiation pattern E-plane 2.0 and 5.0 GHz C h a n i c a l d i m e n s i o n s V i r o n m e n t a l Specification sParameter Limits W e r r e q u i r e m e n t sE x p o s u r e s t a t e m e n t F e t y s t a t e m e n t sModule Dimensions Development Board dimensions C P a r t 1 5 C l a s s B Appendix BCertificationsModifications FCC Declaration of Conformity Standards International EMC StandardsIndex Index-44Connect Wi-Wave Hardware Reference, Rev a 2/2008 WDISABLE# signal Connect Wi-Wave Hardware Reference, Rev a 2/2008