A dielectric resonator balanced second harmonic quasi-optical self oscillating mixer for 60 GHz applications

OFDM is recognized to be one of the best transmission techniques for wideband wireless communication systems. However, it exhibits two main drawbacks: its large amplitude fluctuation and its sensitivity to phase noise. Here we consider the phase noise impairments, taking care of the phase noise spectrum, which diverges form the classical Wiener model as the carrier frequency increases. Moreover, we show that the phase noise distortion can be decomposed in two terms, one dependent on the symbol under detection and the other dependent on the symbols of adjacent subcarriers, so that the performance degradation depends on both the constellation used in each subcarrier and the phase noise spectrum. As a consequence of this new results, the penalty due to phase noise expressed in terms of the average signal/noise plus interference ratio is not applicable in the case of modulations with non-constant amplitude constellations, such as 16-or 64-QAM. The method proposed here achieves a good accuracy, while keeping a low computational complexity, and it is confirmed by simulations.

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“…Another model, which is derived from the oscillator data presented in the millimeter wave range [26][27][28][29], is the following: …”

Section: Modelmentioning

confidence: 99%

Phase Noise Spectral Limits in OFDM Systems

Corvaja

Pupolin

2006

Wireless Pers Commun

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“…The direct conversion circuitry has been widely used for digital Manuscript [2]. A millimeter-wave mixer integrated with a planar antenna has also been introduced by the authors' group [3], [4]. However, the quadrature channel function, which benefits most of the spectrum efficient communication schemes, has not been supported in the circuits proposed in [3] and [4].…”

Section: Integrated Antenna With Direct Conversion Circuitrymentioning

confidence: 99%

“…A millimeter-wave mixer integrated with a planar antenna has also been introduced by the authors' group [3], [4]. However, the quadrature channel function, which benefits most of the spectrum efficient communication schemes, has not been supported in the circuits proposed in [3] and [4]. Recently, a direct conversion sub-harmonic in-phase/quadrature (I/Q) mixer has been suggested in authors' group in order to achieve broad-band digital baseband modulation and demodulation [5].…”

Section: Integrated Antenna With Direct Conversion Circuitrymentioning

confidence: 99%

Integrated antenna with direct conversion circuitry for broad-band millimeter-wave communications

Park

Jeon

Wang

et al. 2003

IEEE Trans. Microwave Theory Techn.

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A compact integrated antenna with direct quadrature conversion circuitry for broad-band millimeter-wave communications is proposed. The conversion circuits include two even-harmonic mixers based on antiparallel diode pairs (APDPs). The equivalent circuit of the APDP derived here provides good agreement with the measured data from 17 to 23 GHz. Overall phase and amplitude imbalance between the in-phase/quadrature (I/Q) output channels are less than 1.2 and 1 dB at IFs of 10 and 100 MHz, respectively. An overall RF power conversion loss of 14.6 dB at the quadrature I/Q channels including the antenna is achieved in the frequency range from 39.75 to 40.25 GHz with a local oscillator (LO) power level of 11.8 dBm. LO leakages at 20 and 40 GHz are 31.5 and 44.8 dBm, respectively. In order to demonstrate the system capabilities for broad-band digital communication, a communication link is built with a pair of the proposed front-ends. Data transmission up to 1-Gb/s data rate for quadrature phase-shift keying modulation is demonstrated. Index Terms-Antiparallel diode pair (APDP), broad-band millimeter-wave circuit, direct quadrature conversion, integrated patch antenna.

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Recent developments in RF front ends based upon active antenna concepts

Fredrick¹,

Itoh

5th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service. TELSIKS 2001. Proceedin

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A dielectric resonator balanced second harmonic quasi-optical self oscillating mixer for 60 GHz applications

Cited by 3 publications

References 3 publications

Phase Noise Spectral Limits in OFDM Systems

Phase Noise Spectral Limits in OFDM Systems

Integrated antenna with direct conversion circuitry for broad-band millimeter-wave communications

Recent developments in RF front ends based upon active antenna concepts

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