Search

The trends pertaining to the innovative design, development, and production of communications equipment in Asia are discussed.

The usage of complementary split ring resonators during the manufacture of microstrip band-stop filters is described.

The usefulness of ferrite junction components, for the control of radio signals during the processing of signals in communications equipment, is described.

The development of a helical resonator-based filter, to be used for the design of telecommunications equipment, is described.

The design of a 2.4 GHz Bluetooth transceiver RFIC in CMOS requires careful verification of key performance criteria at all stages of the design process. This can be accomplished by [...]

Most modern wired and wireless communication systems require sophisticated frequency conversion to and from baseband. Quadrature, or I/Q, modulation is used frequently to upconvert data to an IF in the [...]

LAN/WAN Internetworking Perhaps the most frustrating experience for new entrants into the local area network/wide area network (LAN/WAN) world is the inability to judge the amount of bandwidth required for […]

The transition of data between a conductor-backed coplanar finite ground waveguide and a microstrip line, at different frequencies, is described.

Design and features of equipment used for electronic warfare are described. Equipment includes video receivers, frequency measurement receivers, and superheterodyne receivers.

Power amplifiers are critical radio frequency components of wireless network systems, typically representing 10 to 40 percent of the cost of a basestation. There are a variety of wireless standards [...]

In the past year, the global collaboration of data networks known as the Internet has emerged from the specialized domain of university research departments and government agencies into the public […]

How are bridges and routers and integrated functionality bridge/routers being used to meet the demands of today's internetworking environment? Several years ago, before client-server computing and enterprise networks, computers were […]

Time to market and time to volume play an essential role in the competitive environment of today's wireless communication business. One of the most important elements enabling well-managed product launches [...]

Many articles are devoted to spectral regrowth in wireless communication systems. The most unpleasant consequences are created by nonlinear effects in RE power amplifiers (PA) at high output power levels [...]

Microcell technology delivers big network capacity with little impact on the environment. Wireless carriers are struggling with an unusual paradox. Consumers demand consistent, dependable wireless services, but they do not […]

Every month, Telecommunications(r) editors scan the horizon for important trends, emerging technologies and exciting ventures that will change the nature of telecom services. But only once each year do we […]

hot\hat\adj: Capable of entering the mainstream of telecom systems/operations in one to two years, while having sufficient development dollars and industry support to become economically viable. Despite the fact that […]

As business IP emerges as the predominant element in network traffic, progressive service providers are positioning themselves to deliver the mission-critical, IPdriven services (e.g., electronic data interchange, e-commerce and VoIP) […]

Ubiquitous VoIP call capabilities from public-to-private networks or private-to-private networks are only possible with native IP peering. However, interconnecting networks is a stringent task--one with which today's VoIP equipment architectures […]

Maintaining Quality Voice Transmission Transmission grade of service (GOS) is a measure of users' opinions of the quality of the speech heard during a telephone conversation. GOS is measured on […]

PBXs: Office Controller Exchanges Communications is a competitive business weapon, and telecommunication is rapidly becoming the most common form of business communication. Private branch exchanges (PBXs) are the telecommunications device […]

RF amplifiers used for cellular communications applications must have a near-linear transfer characteristic to avoid introduction of intermodulation distortion (IMD) products produced during the amplification process. Since these IMD products [...]

3G wireless seems to be all about new technology, multibillion-dollar expansions and high-wire international finance deals with little or no discussion of service offerings or value propositions. Surely investors know […]

V.32 Modems: The State of the Marketplace Not unlike many of its high-technology counterparts, the modem market has experienced significant growth over the past decade. The adaptation of innovative technology […]

PBX and Key Systems: The State of the Marketplace In today's PBX market, systems are being equipped with more and more features, such as integrated call distributors and voice messaging […]

Introduction Today's wireless communications and data transfer systems have spawned the need for a cost effective, high gain antenna that is small and aesthetically appealing. To address this need, a [...]