By Zhi Ning Chen
Layout Antennas for contemporary instant Communications Systems
Written by way of a world staff of professional members, this e-book deals whole information at the wide variety of antennas utilized in latest instant communique networks. assurance contains the preferred purposes in WWAN (GSM, CDMA, and WCDMA), WLAN (Bluetooth and WiFi), WMAN (WiMAX), and WPAN (UWB and RFID).
Antennas for Base Stations in instant Communications offers a whole photo of contemporary base station antenna technology--from basics and parameters to engineering and complex solutions--and highlights new applied sciences in antenna layout with more desirable functionality. Real-world case experiences offer you useful examples that may be utilized in your personal method designs.
• follow size suggestions for varied parameters
• allow frequency re-use and channel capability optimization in cellular radio networks
• layout antennas for cellular communications-CDMA, GSM, and WCDMA
• enforce complex antenna applied sciences for GSM base stations
• Facilitate better procedure capability
• layout unidirectional antennas, together with directed dipole, wideband patch, and complementary antennas
• Optimize antenna designs for WLAN (WiFi) applications
• layout antennas for instant own region community (WPAN) functions, together with RFID and UWB
Read or Download Antennas for Base Stations in Wireless Communications PDF
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Extra resources for Antennas for Base Stations in Wireless Communications
In the context of multiband arrays, 850-MHz and 900-MHz bands will be referred to as the low band and 1710–2170-MHz as the high band. The nomenclature for base stations and mobile stations differs between air interface specifications, but for convenience the terms base station (BS) and mobile station (MS) will be used here without implying reference to any particular air interface. To avoid repetition, the following comments apply throughout this chapter: ■ Reciprocity The principle of reciprocity applies to most of the performance parameters of an antenna.
Encinas, Modern Antennas, 2nd edition, New York: Springer, 2005. 3. J. de Kraus and R. J. Marhefka, Antennas for All Applications, 3rd edition, New York: McGraw-Hill Science/Engineering/Math, 2001. 4. W. L. Stutzman and G. A. , 1981. 5. ANSI/IEEE Standard Test Procedure for Antennas, ANSI/IEEE Std 149, New York: John Wiley Distributors, 1979. 6. Richard C. Johnson and Henry Jasik, Antenna Engineering Handbook, 2nd edition, New York: McGraw-Hill Book Company, 1984. 7. com. 8. S. Hienonen, “Studies on microwave antennas: passive intermodulation distortion in antenna structures and design of microstrip antenna elements,” Dissertation, Helsinki University of Technology Radio Laboratory, Espoo Finland, March 2005.
The apparent gap between 65° sectors is filled from an adjacent BS. In dense urban areas the planning of most networks is determined by the need to provide sufficient capacity rather than to cover the largest possible area, so different considerations may apply to the design of BS antennas. For azimuth angles beyond the edges of the served cell, allowing some overlap for handoff control and optimization, the signal radiated by a BS antenna has no functional use and serves only to impair the C/I ratio in other cells.
Antennas for Base Stations in Wireless Communications by Zhi Ning Chen