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Development of a Single-Chip RF Front-End LSI for Wireless LAN With Transmission Line Based Matching Circuits
White Papers In Direct Conversion Receiver (DCR) architecture, the design of mixer is one of the most important steps for a high-performance DCR because it involves the issues of flicker (1/f) noise and conversion gain simultaneously.
[December 6, 2007, 0:01]
RF Micro shrinks phone chip
News Chipmaker RF Micro Devices on Monday unveiled what it claims is the smallest version yet of an integral part of a cell phone known as a "front end receiver". RF Micro Devices claims it's now got the smallest front-end receiver in the cell phone...
[August 13, 2002, 8:16]
Adaptive MIMO OFDM Receivers: Implementation Impairments and Complexity Issues
White Papers However, the commercial deployment of MIMO OFDM systems faces some challenges, including those arising from front-end analog implementation impairments and complex receiver structures. MIMO OFDM communications is a promising choice for future high...
[March 29, 2005, 3:00]
Fractional Rate Phase Detectors for Clock and Data Recovery
White Papers In the receiver front-end, clock information is required for synchronized sampling such that the value of the input signal is sampled at the optimum time. The use of optical fiber as a transmission medium in communications networks allows very high...
[October 7, 2008, 1:01]
Joint Compensation of Transmitter and Receiver Impairments in OFDM Systems
White Papers Such imbalances are caused by the analog processing of the Radio Frequency (RF) signal and can be present at both the transmitter and receiver. The resulting IQ distortion limits the achievable operating SNR at the receiver and the achievable data...
[April 11, 2007, 1:01]
Joint Compensation of OFDM Transmitter and Receiver IQ Imbalance in the Presence of Carrier Frequency Offset
White Papers In this paper the effect of both transmitter and receiver IQ imbalance under carrier frequency offset in an OFDM system is studied and algorithms are developed to compensate for such distortions in the digital domain.
[April 11, 2007, 1:01]
Acer F900 review
Reviews Wi-Fi (802.11b/g), Bluetooth (2.0+EDR) and a GPS receiver (SiRFstar III) complete the wireless connectivity. Handset vendors often add their own front end to Windows Mobile, and Acer is no exception. The far right (End) and inside right (Back...
[September 10, 2009, 13:49]
HTC Touch2 review
Reviews There is a GPS receiver and Google Maps is pre-installed. Microsoft has made its front end more finger friendly, but delve deeper and you'll soon have to resort to the stylus, which lives in a housing on the bottom edge of the casing.
[October 16, 2009, 15:45]
Garmin nüvi 350 review
Reviews The nüvi 350 has a flip-out antenna for its GPS receiver. When the antenna is flipped out, the GPS receiver immediately starts to search for satellites and fix your position. This FM-band receiver costs £167.07 (ex.
[March 21, 2006, 14:55]
Mio P560 review
Reviews One of these buttons opens the Windows Mobile Contacts application, while the other accesses the device’s GPS receiver. The integrated SiRF Star III GPS receiver is another useful feature, which means the Mio P560 can double as a satellite...
[December 3, 2007, 11:17]
Dell and HP PDAs slug it out amid sea of gadgets
News The receiver uses Bluetooth to broadcast GPS location signals, which can be picked up by the handheld from as far away as 30 feet. The receiver will be available around the world next month for $449, the company said in a statement.
[November 19, 2002, 10:28]
HTC Snap review
Reviews The Snap has a GPS receiver, and Google maps is preinstalled to help you take advantage of it. HTC provides a front end to Windows Mobile that looks a little like the TouchFLO UI found on its touch-screen devices.
[June 17, 2009, 14:13]
Telescope microchip could aid quantum research
News The chip was specifically designed to be fitted to the front end of hundreds of super-sensitive radio receiver circuits that amplify cosmic signals. With a total receiver area of one square kilometre, it will easily be the most sensitive radio...
[January 9, 2008, 9:15]
E-TEN Glofiish X800 review
Reviews The latter’s function is pretty obvious: it activates the GPS receiver and the GPS Viewer software, which gives you information about your current position. Both Bluetooth (2.0) and Wi-Fi (802.11b/g) are built in, and we've already noted the...
[January 7, 2008, 8:08]
Acer neoTouch review
Reviews There is Wi-Fi (802.11b/g) and Bluetooth (2.1+EDR), a GPS receiver and an accelerometer to automatically switch the screen into landscape mode as you turn the device in your hand. The neoTouch looks every inch a modern high-end smartphone.
[November 24, 2009, 7:09]
E-TEN Glofiish M700 review
Reviews The buttons above the screen offer quick access to the Windows Mobile Today screen and the built-in GPS receiver, while two softmenu buttons, plus the Call and End buttons, sit beneath the screen. A key feature of the Glofiish M700 is its...
[September 3, 2007, 16:29]
E-TEN Glofiish V900 review
Reviews There is an FM radio and also an FM transmitter that can send a signal to an FM receiver such as the radio in your car. There's no point-to-point navigation software preinstalled, but the GPS receiver can be used with two of the included...
[September 29, 2008, 11:54]
BenQ PalmPro 7763PA review
Reviews There’s a single infrared receiver on top of unit, and the remote control works from most angles. However, the colour wheel used doesn’t appear to rotate particularly fast, as colour fringing can be seen if you wave your hand in front of the...
[August 16, 2002, 15:39]
Motorola MC35 Enterprise Digital Assistant review
Reviews Bluetooth (1.2), and infrared are integrated, as is a GPS receiver. However, these things matter less than good ergonomics, and on that front it's worth noting the display, the mini-keyboard and the arrangement of buttons.
[October 4, 2007, 7:59]
Acer DX900 review
Reviews There is a GPS receiver built in, a front-facing camera for two-way video calling and a 3- megapixel main camera with LED flash and self-portrait mirror. The extras are: Namecard manager which is used in conjunction with the camera to recognise...
[May 5, 2009, 8:19]
