IMS Displays Microwave Advances In Atlanta
Thousands of members of the high-frequency industry will gather in Atlanta, GA this June to catch up on the latest technology, product developments, and tall tales.
MICROWAVE WEEK has become a true meeting place for members of the highfrequency industry. Part continuing education, part product showcase, and part social networking, this week-long series of events is scheduled for the Georgia World Congress Center in Atlanta, GA from June 15-20, 2008. Organized by members of the IEEE's Microwave Theory & Techniques Society (MTT-S), it includes the 2008 International Microwave Symposium (IMS), the 2008 radio-frequency-integrated-circuit (RFIC) Symposium, the 71st Automatic RF Techniques Group (ARFTG) Microwave Measurement Conference, and, of course, the MTT-S Exhibition with more than 400 companies representing product levels from devices through complete test systems and software. For the latest information on attending Microwave Week, visit www.ims2008.org and download the Program Book. For a quick look at the key technical events and products on display, read on.
The IMS technical program features 279 oral presentations covering everything from device technologies to measurement techniques, selected from a total of 762 submitted papers. A sum of 132 of those papers were also chosen for the Interactive Forum (formerly known as poster sessions). The technical program includes 38 workshops. In addition, the 2008 RFIC Symposium, scheduled for June 15-17, offers a focus on IC fabrication and design using commercial computeraided- engineering (CAE) tools, while the 71st ARFTG Microwave Measurement Conference, set for Friday June 20, is an important event for the industry's test and measurement professionals. The ARFTG conference theme for Atlanta is “Network Analysis—50 Years On.”
The MTT-S Exhibition is as much a social gathering as an opportunity for industry companies to showcase their latest products. For specifiers, it is an opportunity to make invaluable contacts at each company of interest and for hands-on examination of the latest hardware, software, and test equipment with product managers nearby to explain details. The exhibitor list is impressive and includes companies from the smallest component manufacturers through the latest test-and-measurement equipment suppliers.
Among a number of new-product announcements in the component area, RFMD ( www.rfmd.com ), usually associated with RFICs, will be spotlighting its five single-junction circulators for wireless-infrastructure applications. The new circulator product family includes the models PC0882AG-21H, PC0940AG-21H, PC1843AG-21H, PC1960AG-21H, and PC2140AG-21H. To provide improvements in reliability and performance over existing circulators, these single-junction circulators are manufactured with samarium-cobalt SmCo magnets packaged in aluminum housings. For example, the PCxxxAG- 21H line of single-junction circulators is specifically designed to cover the five major cellular frequency bands from 869 to 2170 MHz. At the same time, it exhibits superior intermodulation distortion (IMD) performance ranging from 65 to 75 dBc at 2T x 37.5 W. Insertion loss is less than 0.2 dB for the family while isolation is more than 23 dB.
Analog Devices ( www.analog.com ) is debuting direct digital synthesizers (DDSs) and clocks and a phase-locked loop (PLL) with an integrated voltage- controlled oscillator (VCO). The AD9913, which targets portable and handheld equipment, integrates a lowpower DDS core that generates analog outputs to 100 MHz. The company also will be showing the ADF4360-9 PLL synthesizer, which is ideally suited for applications like system clock generation, test equipment, wireless LANs, and CATV equipment. Operating from 65 to 400 MHz with power-supply requirements from 3.0 to 3.4 V, the ADF4360-9 is an integrated integer-N synthesizer and VCO. It is fully pincompatible with the company's other integer-N PLL synthesizers and is supported by the ADIsimPLL design and simulation software.
Using a high-Q surface-acoustic-wave (SAW) design, a new oscillator from Vectron International ( www.vectron.com ) results in spurious-free phase jitter of less than 125 fs-rms. The VS-705 voltage- controlled SAW oscillator (VCSO) offers an expanded frequency range of 120 to 850 MHz in a 5.0 x 7.5 x 2.5 mm LCC package. It operates from a +3.3-V power supply. A +2.5-V power supply is slated to be available in the third quarter. The VCSO boasts 90 dBc of spurious suppression. It is available with differential LVDS or LVPECL outputs. The VS-705 is optimized for use in PLL circuits that require superior jitter filtering and a wider tuning range of ±100 ppm APR. Examples include highspeed data-transmission applications like Synchronous Ethernet, Fibre Channel, traditional SONET/SDH optical networking, and high-clock-rate base stations. In addition, the new VSCO meets the needs of the latest generation of DACs and ADCs.
Anatech Electronics ( www.anatechelectronics.com ) will be showing its diverse lines of RF/microwave filters including bandpass, band-reject, lowpass, and highpass types. For example, one of the firm's latest developments is the model B9506 cavity bandpass filter for INMARSAT applications. With a center frequency of 1542 MHz and passband of 1524 to 1560 MHz, the filter has 0.7 dB or less insertion loss with less than 2.0:1 voltage standing wave ratio (VSWR). It measures just 3.7 x 2.5 x 2.3 in. with SMA female connectors and provides more than 90 dB rejection of out-of-band signals.
Mimix Broadband ( www.mimixbroadband.com ) will be highlighting products like the XL1010-QT low-noise amplifier (LNA), which offers highfrequency, broadband performance in a fully molded QFN package. This GaAs MMIC LNA, which covers 20 to 38 GHz, comes in a standard 3-x-3-mm QFN plastic package. The XL1010- QT delivers 3-dB noise figure and 17 dB small-signal gain. It is well suited for receiver applications that require broadband performance with simple bias requirements. The XL1010-QT also includes on-chip electrostatic discharge (ESD) protection structures and directcurrent (DC) bypass capacitors to ease implementation.
Endwave ( www.endwave.com ) recently announced two power amplifiers for Ku-band VSAT networks and Ks-band satellite communications (satcom) systems. The Ku-band amplifier provides at least 40 dB gain with 0.5 dB gain flatness and +37 dBm typical output power at 1-dB compression. It runs on 2.6 A at +15 VDC and has an output third-order intercept point of +47 dBm. The Ka-band amplifier offers at least 27 dB gain with +36 dBm typical output power at 1-dB compression and typical third-order intercept of +43 dBm. Although designed for transmit operation, the amplifiers feature noise figures of 4.5 dB maximum at Ku-band frequencies and 6 dB maximum at Ka-band frequencies. All units have a maximum VSWR of 2.0:1 without the use of RF input or RF output isolators.
MITEQ ( www.miteq.com ) will be showing its diverse lines of components and subassemblies for microwave and satcom systems including its new UWB and MOS lines of frequency synthesizers. The UWB series offers step sizes as small as 1 kHz across a total frequency range of 4.5 to 13.0 GHz with at least +13 dBm output power. The MOS line of multi-octave, low-noise synthesizers measures 5.0 x 8.0 x 1.25 in. with 1-kHz steps from 100 MHz to 20 GHz.
In addition to its extensive lines of passive components, Synergy Microwave Corp. ( www.synergymwave.com ) will offer insights into its low-noise tunable oscillators and frequency synthesizers including the MTS3000DS series of frequency synthesizers. Available with 1-Hz frequency resolution from 5 MHz to 6 GHz, programming is made simple by flexible interface options including I2C, SPI, RS232, and—optionally— Ethernet interfaces.
Voltronics Corp. ( www.voltronicscorp.com ) will be showing its many lines of tuning components and trimmer capacitors including the chip-sized J series trimmer capacitors. Available with capacitance ranges as wide as 10 to 120 pF in a single component and self-resonant frequencies (SRFs) as high as 6 GHz, they are ideal for a wide range of frequency-tuning applications. For all models, the DC working voltage is 100 V and the DC withstanding voltage is 220 V. The temperature coefficients are as tight as 0 ± 200 PPM/ºC.
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