Brainboxes RS232 manual Antenna Characteristics, Gain, Radiation Patterns

Page 38

13.5. Antenna Characteristics

13.5.1. Gain

The antenna is integral to the printed circuit board. It is a quarter-wave Planar Inverted-F Antenna (PIFA) with a gain of -0.3 dBm.

13.5.2. Radiation Patterns

315o

270o

225o

0o			0o
			0o
0 dBd			0 dBd
-10 dBd			0 dBd
-10 dBd		315o	-10 dBd
	o	315o	-10 dBd	o
-20 dBd	45			o
-20 dBd			-20 dBd	45
			-20 dBd

-30 dBd	-30 dBd

90o 270o

90o

	135o	225o		135o
		225o
180o	horizontal polarisation		180o	horizontal polarisation
	vertical polarisation			vertical polarisation
		0o
		0 dBd
	315o	-10 dBd	45o
		-20 dBd	45o
		-20 dBd

-30 dBd

270o

90o

225o	135o
225o
180o	horizontal polarisation
	vertical polarisation

Manual for BL-521 5_3.doc

© Copyright Brainboxes Limited 2004

Page 38 of 41

Image 38

Contents Product Manual Table of Contents Worked Examples Products and Firmware IntroductionPreamble Changes from earlier versionsBL-730 Physical Product FeaturesBL-521 Installing the Configuration Application Product ConfigurationConfiguration features at a glance Opening the Configuration Application Device Info Using the Configuration ApplicationPort Settings Support/LinksParity Current SettingsBaud Rate Stop BitsClient/Server Connect UsingPIN Code Partner DeviceManual for BL-521 53.doc Copyright Brainboxes Limited Device Name Advanced SettingsDevice Address DiscoverabilityHigh Security ModeSecurity mode for converter as Server receives connections ModeHandshaking Low Power ModeClass of Device Connect SchemeInteractive Menu Default settings Upgrade DeviceAlternative Product Configuration Accessing the configuration menus and commandsConfiguration Menu NavigationMain Menu Communications ParametersBluetooth Parameters Display, Restore and Update Current and Factory Settings Disabling Interactive Menu Upgrading Firmware Command Interface Command Description NameRemote Configuration Resetting the ProductUpgrading your device Manual for BL-521 53.doc Copyright Brainboxes Limited Manual for BL-521 53.doc Copyright Brainboxes Limited Physically connecting to your RS232 device Configuring the communications parametersConfiguration by Windows Application Connecting converters over BluetoothClient/Server Pair Cable Replacement Configuration by Menu Configure and connect the converter Server Connecting to BL-521 from a remote Bluetooth deviceConfiguration by Commands Bluetooth Enable your PCConnect your application to the new COM port Secure the relationshipConnect to the Serial Port profile Scientific equipment data logging Custom Factory ConfigurationWorked Examples Reference source not found. for TroubleshootingReference source not found. Error Storage and Operating Environment Technical SpecificationsPower requirements Transmitter Characteristics Receiver CharacteristicsRadiation Patterns Antenna CharacteristicsGain Important Notice for use in France and Italy Regulatory InformationEurope EU Declaration of Conformity Rest of WorldIndex Version History Version Date Author Checked By Comments