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Due to the fast growing demand for broadband wireless communications, the operating frequency band is moving toward the 5 GHz U-NII band. The advantage of combining baseband and the RF front-end on a single chip for cost savings is strongly desired for highly integrated systems-on-chip (SoC) applications. Due to...

The demand for small, compact, low cost, high performance filters, diplexers and multiplexers using MIC technologies has increased along with advances in microwave systems. Capacitive-loaded interdigital filters are compact in size, have sharp roll factor, excellent broad stopband performance and are easy to fabricate. A filter with tapped-line is...

Due to the fast growing demand for broadband wireless communications, the operating frequency band is moving toward the 5 GHz U-NII band. The advantage of combining baseband and the RF front-end on one single chip for cost savings is strongly desired for highly integrated systems-on-chip (SoC) applications. Due to...

The analytical and behavior models for direct conversion receiver IP 2 nonlinear distortion characteristics have been derived. The impact of IP 2 on system EVM, BER/PER performance was simulated. The trade-offs between IP 2 distortion and other impairments, such as peak-to-average power ratio (PAPR), IP 3 , phase noise...

Fig. 1 IEEE 802.11 WLAN frequency allocations. t Due to the rapidly growing demand for broadband wireless communication, the operating frequency is moving toward the 5 GHz U-NII band. With a maximum data rate of 54 Mb/s, the IEEE 802.11a wireless LAN (WLAN) standard specifies 300 MHz allocation of...

Defected ground structures (DGS) etched in the metallic ground plane of microstrip lines, also known as photonic bandgap (PBG) structures, are attractive to obtain unwanted frequency rejection and circuit size reduction. Research on the PBG was originally carried out in the optical regime 1,2 and has recently started with...

Microwave thermal noise has long been employed for built-in test (BIT) of receivers and radiometers. Today’s compact solid-state noise sources are broadband and extremely stable making them very useful signal sources for a variety of tests. What is not commonly known is how many different types of BIT systems...

Manual Variable Attenuators This series of 2 W manual variable attenuators offers users a wide choice of attenuation ranges from 0 to 10 dB in 1 dB steps up to 0 to 110 dB in 1 dB steps. This series of attenuators covers a frequency range of DC to...

Industry News Elcoteq Network Corp. and Tellabs International announced that they have signed an agreement whereby Tellabs will outsource manufacturing of its international products and transfer ownership of its Espoo, Finland manufacturing operations to Elcoteq. The deal primarily involves manufacturing of Tellabs’ digital optical cross-connection products and broadband access...

Service Brochure This brochure focuses on the company’s core technologies that include support in the design, development and fabrication of complex, ASICs and MMICs to meet specific design requirements. Areas of focus, design and manufacturing support, modeling, characterization and design services are also highlighted. ACCO USA Corp., Littleton, MA...