MULTI BAND, MULTI MODE DIGITAL RF RECEIVER FRONT-END MODULE FOR M-WIMAX

Multi Band, Multi Mode Digital Rf Receiver Front-end Module for M-wimax

A digital RF receiver front-end employing a DT filter is proposed for application to m-WiMAX & The SAW-less receiver architecture, where the large out-of-band interferer can be rejected selectively by using a scalable frequency response property of FIR filter. In addition to the flexibility of the DT filter, the new non-decimation finite impulse response (NDF) filter can be cascaded to a conven...

A Digital-Front-End Enhanced Multi-Mode/Multi-Standard Wireless Receiver

This paper presents a multi-mode receiver concept for different transmission standards like UMTS and IS95. Due to the use of a Digital-Front-End (DFE) the requirements for the analog part of the well known direct conversion receiver (DCR) architecture decrease because channelization and fine frequency tuning are shifted from the analog into the digital domain. The adaptation of the channelizati...

LNA and Mixer Designs for Multi-Band Receiver Front- Ends

Highly Compact Embedded Duplexer Implementation for WiMAX Dual-band Front-end Module with Organic Package Substrate

In this paper, low cost and high performance duplexers are investigated for WiMAX front-end module with multi-layered organic package substrate. This dual band FEM includes a 2.5GHz power amplifier die with switch and has tiny PKG form factor. In addition to module size limitation, FEM requires higher gain and stringent attenuation characteristics specification. The embedded BPFs and duplexer w...

RF front-end architecture for a triple-band CMOS GPS receiver

This paper describes a triple-band global positioning system (GPS) receiver that simultaneously covers the L1, L2, and L5 frequency bands. The proposed receiver uses an image-rejection technique that can separate signals from the three frequency bands to three corresponding ports. It uses a single RF path containing a low-noise amplifier (LNA), and active and passive mixers with a pair of local...