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WiMAX Delivers Performance & Value at 3.5 GHz
White Paper Almost three quarters of the spectrum allocated for WiMAX globally is focused in the 2.5 GHz and 3.5 GHz bands. WiMAX investment decisions are predicated by access to appropriately regulated, licensed... [01 Apr 2009]
Radio-Over-Fiber Transmission of 1.25-Gigabit Ethernet Signal on 60-GHz Band Subcarrier With Performance Improvement and Wavelength Reuse
White Paper With Radio-over-Fiber (RoF) enabled remote antenna, Gigabit Ethernet service operating at 60-GHz frequencies can be accessed cordlessly. Due to limited linear operation region of 60-GHz optoelectronic... [02 Apr 2009]
Design of GaN HEMT Transistor Based Amplifiers for 5-6 GHz WiMAX Applications
White Paper 2.5 and 5 Watt average power (15 and 30 Watt peak power) GaN HEMT amplifiers for WiMAX signal protocols have been designed and fabricated for use in the 5.5 to 5.8 GHz band. The 2.5 Watt PA produces 11 dB of gain and the... [22 Apr 2009]
MIMO Channel Sounder at 3.5 GHz: Application to WiMAX System
White Paper This paper presents a MIMO (Multiple Input Multiple Output) channel sounder at 3.5 GHz developed at IETR. Different antenna arrays architectures are designed and calibrated at 3.5 GHz for high resolution... [22 Apr 2009]
The U.S. WiMAX 3.65 GHz Opportunity: The History of the Band and How WISPs Can Register for FCC Approval
White Paper The 3.65 GHz frequency band presents an unparalleled opportunity for rural and suburban service providers - what has been referred to as a "Land grab" opportunity to capture market territory and broadband customers. [22 Apr 2009]
WiMAX Forum White Paper - Spectrum Opportunities Below 1 GHz
White Paper This paper provides an analysis of spectrum opportunities for WiMAX technologies in bands below 1 GHz. It describes the recent regulatory developments in the bands below 1 GHz, focusing especially on the... [22 Apr 2009]
A 2 - 11 GHz Fully-Integrated Low Noise Amplifier for WiMAX Systems
White Paper In this paper, a 2 - 11 GHz WiMAX Low Noise Amplifier (LNA) is designed and implemented in 0.18-µm CMOS process. The LNA obtained 3.6 - 3.628 dB Noise Figure (NF) in the frequency range of 2 - 11 GHz... [23 Apr 2009]
Chip Antenna for 5.2 GHz Wireless LAN
White Paper The authors have proposed two types of microstrip antennas printed on the parallelepiped dielectric chip for the Bluetooth system and the 5.2 GHz wireless LAN. For the 5.2 GHz Wireless LAN, the shorted... [01 Apr 2009]
IBM previews its 1 GHz Power4 chip
News The chip has been tested at clock speeds of 1 GHz in laboratories, according to the company. IBM gave a sneak preview of its new chip, the Power4, at the Hot Chips conference in Silicon Valley this week. [19 Aug 1999]
CFR and SNR Estimation Based on Complementary Golay Sequences for Single-Carrier Block Transmission in 60-GHz WPAN
White Paper Single-Carrier Frequency-Domain Equalization (SC-FDE), is being considered as an option technique for the Wireless Personal Area Network (WPAN) operating at 60-GHz. The Single-Carrier Block Transmission (SCBT), a.k.a. [30 Aug 2009]
Point-to-Point Connectivity in the 4.9 GHz Public Safety Band
White Paper The 4.9 GHz public safety spectrum allows authorized entities to deploy critical services without interference, including permanent "Hot-Spot" systems in high-interference RF areas or temporary incident command centers... [15 Aug 2009]
Wireless Internet Using 2.4 GHz
White Paper This paper shows how by using the 2.4 GHz band has proven to be an effective and profitable means to offer high-speed wireless Internet access to customers at fixed locations. Wireless Internet is currently available... [29 Sep 2006]
RFID Tag Characterization in a GHz Transverse Electromagnetic Cell
White Paper This paper presents results from a study that attempted to characterize the performance of RFID tags in a GHz Transverse Electromagnetic (GTEM) cell in which an approximately constant Electro Magnetic (EM) field... [13 Apr 2009]
Key Factors for IEEE 802.16e 2.5 GHz WiMAX Deployments for Fixed Access Service Applications
White Paper Cellular telephony has successfully spread voice services virtually everywhere in the world. WiMAX has the potential to do the same for Internet access. A key factor in WiMAX's success will be the ability to take advantage of the... [22 Apr 2009]
Compatibility of Services Using WiMax Technology With Satellite Services in the 2.3 - 2.7 Ghz and 3.3 - 3.8 Ghz Bands
White Paper This paper sets out a range of issues that may arise through sharing some spectrum with satellite services in two key candidate bands for WiMAX technology: 2.3-2.7 GHz and 3.3-3.8 GHz. With regard to the... [22 Apr 2009]