Practical Design Issues of Sweeping Wideband Millimeter Wave Heterodyne Receiver Front-ends
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Pekka Eskelinen
Abstract
The limited availability of analog-to-digital converters with high enough speed and dynamic range makes conventional heterodyne receivers still a reasonable solution for millimeter wave work when a wide frequency tuning range is desired. These basically well-known arrangements from the microwave bands may show surprising phenomena if the features of individual millimeter building blocks are not carefully analyzed. LNA gain below the frequency range of interest can be 10–20 dB more than expected which could severely impair the system noise performance after downconversion. Local oscillator tuning sensitivity above 1000 MHz/V, partly based on almost mandatory multiplication, together with very large tuning speed easily cause stability problems. Particularly active multipliers have often less than 20 dB rejection of fundamental frequency and unwanted harmonics output, which together with mixer LO/IF feed through can completely desensitize the front-end. An improperly matched mixer IF port may confuse even an experienced designer by phantom responses. Finally, modern logarithmic detectors chips can unexpectedly waste more than 10 dB of receiver sensitivity.
©[2013] by Walter de Gruyter Berlin Boston
Articles in the same Issue
- Masthead
- Practical Design Issues of Sweeping Wideband Millimeter Wave Heterodyne Receiver Front-ends
- Hybrid SIW-GCPW Narrow-Wall 3 dB Coupler
- Interpolated Adaptive Doppler Filter for Estimating Velocity
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- Random Sequence Based Multipolling Method for Collecting Ubiquitous RFID Tag Data in Wireless LANs
- Hybrid DDS-PLL Frequency Synthesizer with Reference Clock Modulation
- New Formulation of the Equations Describing the Locked States of Two Van der Pol Oscillators Coupled through a Broadband Network – Application to the Design of Two Differential Coupled VCOs
- Joint Cooperative Temporal Sensing and Distributed Estimation for Bayesian Optimal Threshold
- Analysis of the Performance of the Two-way Relaying under the Influence of Channel Estimation Error and Co-channel Interference
Articles in the same Issue
- Masthead
- Practical Design Issues of Sweeping Wideband Millimeter Wave Heterodyne Receiver Front-ends
- Hybrid SIW-GCPW Narrow-Wall 3 dB Coupler
- Interpolated Adaptive Doppler Filter for Estimating Velocity
- Crosstalk Suppression in High Data Rate and High Density Hard Disk Drive Interconnects Using Magnetic Composites
- Random Sequence Based Multipolling Method for Collecting Ubiquitous RFID Tag Data in Wireless LANs
- Hybrid DDS-PLL Frequency Synthesizer with Reference Clock Modulation
- New Formulation of the Equations Describing the Locked States of Two Van der Pol Oscillators Coupled through a Broadband Network – Application to the Design of Two Differential Coupled VCOs
- Joint Cooperative Temporal Sensing and Distributed Estimation for Bayesian Optimal Threshold
- Analysis of the Performance of the Two-way Relaying under the Influence of Channel Estimation Error and Co-channel Interference
