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Filtering by: Contributor advisor sim Stonick, John T. Remove constraint Contributor advisor sim: Stonick, John T.

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A new correction algorithm for gain and phase imbalances in a homodyne receiver

Creator:

Vogel, Julia

Abstract:

The recent demand for wireless transceivers has created a flurry of research into nontraditional receiver architectures. The homodyne receiver, because of its high degree of integration, low complexity and low power consumption, has surfaced a desirable alternative to the well-known heterodyne receiver. However, distortions such as gain and phase imbalance...

Resource Type:

Masters Thesis
New results for differentially detected [pi]/4 DQPSK signal in a direct-conversion transceiver

Creator:

Scarpa, Maxime R.

Resource Type:

Masters Thesis
Phase noise models for single-ended ring oscillators

Creator:

Godbole, Devavrata

Abstract:

The tremendous growth of wireless and mobile communications has resulted in placing of stringent requirements on the channel spacing and, by implication, on the phase noise of oscillators, typically mandating the use of passive LC oscillators with high quality factor (Q). However the trend towards large-scale integration and low cost...

Resource Type:

Masters Thesis
DC notch filter offset cancellation for direct-conversion receivers

Creator:

Pan, Dongling

Abstract:

Direct-conversion architecture would dominate the modern low power wireless receiver architecture if problems such as offset cancellation, even-order distortion, and flicker noise were solved. Among those problems, offset is the most serious one. This thesis will discuss and analyze one approach to cancel offsets in direct-conversion receivers. First, we explain...

Resource Type:

Masters Thesis
Adaptive dual-loop algorithm for cancellation of time-varying offsets in direct conversion mixers

Creator:

Holenstein, Christian

Abstract:

The thesis presents a new algorithm and structure that is to be used in conjunction with a specially modified CMOS Gilbert cell mixer to remove time-varying DC offsets in direct conversion receivers. In our approach, the DC offset is detected at the output of the mixer using a dedicated coarse...

Resource Type:

Masters Thesis
A 2.4GHZ direct conversion mixer with offset cancellation

Creator:

Schmidbauer, Hardy

Abstract:

Dynamic DC offset is one of the biggest problems preventing the implementation of single chip receivers. This thesis presents a 2.4GHz downconversion mixer designed to work with adaptive DC offset cancellation for a fully integrated direct conversion receiver. Offset can be removed by dynamically changing the PFET load bias in...

Resource Type:

Masters Thesis
Efficient digital predistortion techniques for power amplifier linearization

Creator:

Zhuo, Min

Abstract:

The importance of spectral efficiency in mobile communications often requires the use of non-constant-envelop linear digital modulation schemes. These modulation techniques carry signal information in both magnitude and phase, thus they must be linearly amplified to avoid nonlinear signal distortion which is not correctable in a typical receiver. A second...

Resource Type:

Masters Thesis
A direct-conversion offset-cancellation mixer in 2.4 GHz CMOS

Creator:

Lehne, Mark A.

Abstract:

We present a new circuit design for adaptive offset cancellation in a fully differential 2.4 GHz CMOS direct conversion mixer. Our circuit structure is a modification of a Gilbert cell mixer in which offsets are cancelled by injecting cancellation currents into the legs of the mixer by dynamically varying the...

Resource Type:

Masters Thesis

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Academic Affiliation

Electrical and Computer Engineering8

Advisor

Stonick, John T.8
Kiaei, Sayfe1

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1998 to 2002

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Committee Member

Kassner, Michael E.1
Madsen, Victor A.1
Moon, Un Ku1
Moon, Un-Ku1
Settaluri, Raghu1
more Committee Members »

Creator

Godbole, Devavrata1
Holenstein, Christian1
Lehne, Mark A.1
Pan, Dongling1
Scarpa, Maxime R.1
more Creators »

Date

Date range begin – Date range end

Current results range from 1998 to 2001

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Decade

2000-20096
1990-19992

Degree Field

Electrical and Computer Engineering8

Degree Level

Master's8

Degree Name

Master of Science (M.S.)8

Language

English [eng]8

Non-Academic Affiliation

Oregon State University. Graduate School8

Peer Reviewed

No8

Resource Type

Masters Thesis8

Rights Statement

In Copyright6
Copyright Not Evaluated2

Subject

Wireless communication systems3
Signal processing -- Digital techniques2
Direct energy conversion1
Electric filters1
Electronic circuit design1
more Subjects »

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