THine Electronics

Although it is important to achieve 10-Gbit/s rates on a single interface, it is also important to aggregate, for example, 10 1-Gbit/s interfaces. When multiple interfaces are connected to the network processor, the data of a particular packet might be interleaved with other packet data in the receive buffer.

Measuring Output Power at the PA Once designers have checked power output at the antenna, they should then evaluate the power being delivered from the power amplifier (PA). Note: when making this measurement, we'll assume that we have confirmed that the coplaner waveguides on our PC board are close to 50 ohms.

The response of this raised cosine filter for various word lengths is shown in Figure 3 . It is clear that out-of-band attenuation and droop degrade with fewer bits. The RTL or the HDL representation of this filter with a specifiable bit-width can be co-simulated with the RF and baseband portions of the design to assess the distortion it introduces. The results of the co-simulation can then be used to select the minimum (optimum) word length that does not significantly distort the signal.

Recently our engineering team at Plextek was involved in the initial design and construction of a broadband wireless access system for Radiant Networks Plc (Essex, England). It would consist of a mesh of point-to-point microwave links in the 28GHz band. With paths of variable length and quality, each modem was designed to support four bi-directional Time-Division Multiple-Access (TDMA) channels at 100Mbit/second if possible, with fallback rates of 50Mbit/sec and 25Mbit/sec, if conditions demand, using adaptive equalisation and modulation. In addition there were mesh-specific operations such as antenna steering, exploration, node discovery and link formation and maintenance. Statistics were also gathered to support mesh management.

low dielectric constant materials

Measuring Output Power at the PA Once designers have checked power output at the antenna, they should then evaluate the power being delivered from the power amplifier (PA). Note: when making this measurement, we'll assume that we have confirmed that the coplaner waveguides on our PC board are close to 50 ohms.

The response of this raised cosine filter for various word lengths is shown in Figure 3 . It is clear that out-of-band attenuation and droop degrade with fewer bits. The RTL or the HDL representation of this filter with a specifiable bit-width can be co-simulated with the RF and baseband portions of the design to assess the distortion it introduces. The results of the co-simulation can then be used to select the minimum (optimum) word length that does not significantly distort the signal.

Recently our engineering team at Plextek was involved in the initial design and construction of a broadband wireless access system for Radiant Networks Plc (Essex, England). It would consist of a mesh of point-to-point microwave links in the 28GHz band. With paths of variable length and quality, each modem was designed to support four bi-directional Time-Division Multiple-Access (TDMA) channels at 100Mbit/second if possible, with fallback rates of 50Mbit/sec and 25Mbit/sec, if conditions demand, using adaptive equalisation and modulation. In addition there were mesh-specific operations such as antenna steering, exploration, node discovery and link formation and maintenance. Statistics were also gathered to support mesh management.

While field-programmable gate arrays take advantage of Moore's Law and other advanced process technology such as all-copper interconnect and low-k dielectric substrates to increase clock frequencies over time, their primary mechanism for supplying performance is completely different from the instruction-set architecture (ISA) approach. FPGAs exploit the large amount of parallelism inherent in most signal-processing algorithms. These devices can be viewed as a naturally parallel-processing engine that can take advantage of the rich parallelism in a soft-radio PHY.

The HFW architecture also drops cost in the broadband. Through this approach, the headend can interface directly to a router, thus eliminating the costly CMTS.

Quality of service (QoS) is by far not a new concept to broadband system designers. On the contrary, QoS is a concrete, broad objective that engineers must strive for in all equipment designs.

M55342M08B4K30RS6

The response of this raised cosine filter for various word lengths is shown in Figure 3 . It is clear that out-of-band attenuation and droop degrade with fewer bits. The RTL or the HDL representation of this filter with a specifiable bit-width can be co-simulated with the RF and baseband portions of the design to assess the distortion it introduces. The results of the co-simulation can then be used to select the minimum (optimum) word length that does not significantly distort the signal.

Recently our engineering team at Plextek was involved in the initial design and construction of a broadband wireless access system for Radiant Networks Plc (Essex, England). It would consist of a mesh of point-to-point microwave links in the 28GHz band. With paths of variable length and quality, each modem was designed to support four bi-directional Time-Division Multiple-Access (TDMA) channels at 100Mbit/second if possible, with fallback rates of 50Mbit/sec and 25Mbit/sec, if conditions demand, using adaptive equalisation and modulation. In addition there were mesh-specific operations such as antenna steering, exploration, node discovery and link formation and maintenance. Statistics were also gathered to support mesh management.

While field-programmable gate arrays take advantage of Moore's Law and other advanced process technology such as all-copper interconnect and low-k dielectric substrates to increase clock frequencies over time, their primary mechanism for supplying performance is completely different from the instruction-set architecture (ISA) approach. FPGAs exploit the large amount of parallelism inherent in most signal-processing algorithms. These devices can be viewed as a naturally parallel-processing engine that can take advantage of the rich parallelism in a soft-radio PHY.

The HFW architecture also drops cost in the broadband. Through this approach, the headend can interface directly to a router, thus eliminating the costly CMTS.

Recently our engineering team at Plextek was involved in the initial design and construction of a broadband wireless access system for Radiant Networks Plc (Essex, England). It would consist of a mesh of point-to-point microwave links in the 28GHz band. With paths of variable length and quality, each modem was designed to support four bi-directional Time-Division Multiple-Access (TDMA) channels at 100Mbit/second if possible, with fallback rates of 50Mbit/sec and 25Mbit/sec, if conditions demand, using adaptive equalisation and modulation. In addition there were mesh-specific operations such as antenna steering, exploration, node discovery and link formation and maintenance. Statistics were also gathered to support mesh management.

While field-programmable gate arrays take advantage of Moore's Law and other advanced process technology such as all-copper interconnect and low-k dielectric substrates to increase clock frequencies over time, their primary mechanism for supplying performance is completely different from the instruction-set architecture (ISA) approach. FPGAs exploit the large amount of parallelism inherent in most signal-processing algorithms. These devices can be viewed as a naturally parallel-processing engine that can take advantage of the rich parallelism in a soft-radio PHY.

The HFW architecture also drops cost in the broadband. Through this approach, the headend can interface directly to a router, thus eliminating the costly CMTS.

carbon-film resistor

While field-programmable gate arrays take advantage of Moore's Law and other advanced process technology such as all-copper interconnect and low-k dielectric substrates to increase clock frequencies over time, their primary mechanism for supplying performance is completely different from the instruction-set architecture (ISA) approach. FPGAs exploit the large amount of parallelism inherent in most signal-processing algorithms. These devices can be viewed as a naturally parallel-processing engine that can take advantage of the rich parallelism in a soft-radio PHY.

The HFW architecture also drops cost in the broadband. Through this approach, the headend can interface directly to a router, thus eliminating the costly CMTS.

The HFW architecture also drops cost in the broadband. Through this approach, the headend can interface directly to a router, thus eliminating the costly CMTS.

Quality of service (QoS) is by far not a new concept to broadband system designers. On the contrary, QoS is a concrete, broad objective that engineers must strive for in all equipment designs.

Figure 1:  Schematic diagram of simple MPEG-4 encoder showing software boundary

Property: A general behavioral attribute used to characterize a design. Properties can be high-level attributes, such as characteristics of incoming and outgoing networking packets, or low-level attributes related to the state encoding of a finite-state machine (FSM).