Incremental Improvements Define The 2012 Mobile World Congress |
|
 |
Louis E. Frenzel, Editor in Chief
The usual players all showed up at this year’s Mobile World Congress in Barcelona with lots of improved devices, but no real game-changing breakthroughs... |
Reflections on Transistor Stability
When designing amplifiers, one goal is to get rid of any oscillations. The standard approach is to examine the so-called K-factor, or stability circles on the Smith chart. However, there are limitations to this approach. This paper examines those limitations and presents a new methodology to reduce oscillations by employing a complex sphere....
Designing Signals for Arbitrary Waveform Generators
Many modern RF signal generators are equipped with a baseband signal processing board that includes a dual arbitrary waveform generator, which is used to drive an IQ modulator. These signal generators typically support a wide variety of modulation schemes implemented either as part of their firmware personalities or via dedicated external software packages. An alternative to instrument specific multitone, modulated pulsed signals is to design the waveform in customized software....
Correlating High-Speed ADC Performance to Multicarrier 3G Requirements
The sensitivity analysis of multicarrier 3G receivers depends on various aspects of the system design goals. While linear devices have well known system contributions, data converters contribution to system performance is less well understood. This article will provide guidelines for analog-to-digital converter (ADC) selection based on receiver performance requirements....
products
Low-noise amplifier ICs for broadband millimeter wave communications TriQuint Semiconductor Inc. announced the introduction of three new low-noise amplifier...
RF Module Design: Requirements and Issues
At the hub of a top-down design flow for an RF-system-design-to-product implementation is the RF module design for RF integrated circuits (RFICs), boards and a final RF system prototype. A lack of EDA tool integration and/or standard data-interfaces for the various design disciplines — such as the RF system, printed circuit boards (PCBs), IC packages and IC designs, and prototype testing — have contributed to the difficulty of achieving more accurate models. This article will highlig...
PSCPS Family of Coplaner Analog Phase Shifters
Agile Materials & Technologies Inc. announced its PSCPS family of coplanar analog phase shifters. These products are the first in a series that enable...
product focus test and measurement
Anritsu Co. Measurement Solution for Handset Power Amplifiers Anritsu Co. Corp. introduced the ME7840/4 handset power amplifier test system (PATS), a...
Mimix Broadband Introduces GaAs MMIC Sub-harmonically Pumped Receiver
Mimix Broadband Inc. announced the introduction of a gallium arsenide monolithic microwave integrated circuit sub-harmonically pumped receiver....
Long-Term Prospects for Handset Components Strong Says Report
Scottsdale, Az. -- While the last 12 months has been a trying time for both handset component manufacturers and handset manufacturers alike, signs of returning growth are starting to appear, and with 2.5G and 3G already in operation, long-term prospects for growth look good, and new technologies look promising, says a market research report from In-Stat/MDR....
Motorola Demonstrates ZigBee 2.4 GHz Wireless Networking Technology
Austin, Texas -- Motorola Inc. announced that it is delivering hardware and software samples to several development partners in support of the draft IEEE 802.15.4 standard being driven by the ZigBee Alliance....
Chartered Semiconductor and Mentor Graphics Offer Mixed-signal Tech Design Kit
Milpitas, Calif. and Wilsonville, Ore. -- Chartered Semiconductor Manufacturing Ltd. a dedicated semiconductor foundry, and Mentor Graphics Corp. collaborated to deliver integrated circuit (IC) analog/mixed-signal (AMS) design kits validated for Chartered's manufacturing processes at multiple technology nodes, starting first with 0.18 micron and extending through 0.13 micron to 90 nanometer....
Elanix Releases CDMA2000 Library for SystemView
Westlake Village, Calif. -- Elanix Inc., a developer of simulation and analysis software, announced the release of the CDMA2000 Library, to add standard-compliant physical layer transmitter and receiver design, building and testing to the SystemView environment....
The Technology Beyond Wi-Fi is Here, Study Says
New York -- A more robust standard for high-speed broadband wireless delivery to laptops and desktops will augment the burgeoning Wi-Fi market beginning in late 2004, says a market research study by Visant Strategies Inc., an emerging-wireless-technology research firm....
Inphi Debuts Commercial Prescalers for Advanced Synthesizer Apps Up to 25 GHz
Westlake Village, Calif. -- Inphi Corp. announced six prescalers for advanced synthesizer applications requiring low and stable phase noise at frequencies from DC to 25 GHz. These devices are typically used in high-frequency phase-locked loop (PLL) oscillator circuits. They are designed for a broad array of microwave and communications systems, including point-to-point and point-to-multipoint digital radios, radar, electronic warfare, satellite communic...
Raditek Introduces New Stripline Drop-in Models and New Coaxial Isolator
San Jose, Calif. -- Raditek Corp., a developer of wireless and microwave isolators and circulators, announced the release of three new Tx/Rx products....
Previous | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 | 101 | 102 | 103 | 104 | 105 | 106 | 107 | 108 | 109 | 110 | 111 | 112 | 113 | 114 | 115 | 116 | 117 | 118 | 119 | 120 | 121 | 122 | 123 | 124 | 125 | 126 | 127 | 128 | 129 | 130 | 131 | 132 | 133 | 134 | 135 | 136 | 137 | 138 | 139 | 140 | 141 | 142 | 143 | 144 | 145 | 146 | 147 | 148 | 149 | 150 | 151 | 152 | 153 | 154 | 155 | 156 | 157 | 158 | 159 | 160 | 161 | 162 | 163 | 164 | 165 | 166 | 167 | 168 | 169 | 170 | 171 | 172 | 173 | 174 | 175 | 176 | 177 | 178 | 179 | 180 | 181 | 182 | 183 | 184 | 185 | 186 | 187 | 188 | 189 | 190 | 191 | 192 | 193 | 194 | 195 | 196 | 197 | 198 | 199 | 200 | 201 | 202 | 203 | 204 | 205 | 206 | 207 | 208 | 209 | 210 | 211 | 212 | 213 | 214 | 215 | 216 | 217 | 218 | 219 | 220 | 221 | 222 | 223 | 224 | 225 | 226 | 227 | 228 | 229 | 230 | 231 | 232 | 233 | 234 | 235 | 236 | 237 | 238 | 239 | 240 | 241 | 242 | 243 | 244 | 245 | 246 | 247 | 248 | 249 | 250 | 251 | 252 | 253 | 254 | 255 | 256 | 257 | 258 | 259 | 260 | 261 | 262 | 263 | 264 | 265 | 266 | 267 | 268 | 269 | 270 | 271 | 272 | 273 | 274 | 275 | 276 | 277 | 278 | 279 | 280 | 281 | 282 | 283 | 284 | 285 | 286 | 287 | 288 | 289 | 290 | 291 | 292 | 293 | 294 | 295 | 296 | 297 | 298 | 299 | 300 | 301 | 302 | 303 | 304 | 305 | 306 | 307 | 308 | 309 | 310 | 311 | 312 | 313 | 314 | 315 | 316 | 317 | 318 | 319 | 320 | 321 | 322 | 323 | 324 | 325 | 326 | 327 | 328 | 329 | 330 | 331 | 332 | 333 | 334 | 335 | 336 | 337 | 338 | 339 | 340 | 341 | 342 | 343 | 344 | 345 | Next
