A Broadband High Linearity and Isolation Down-Conversion Mixer for Wimax
                        Applications

Wei, Hung-Che; Weng, Ro-Min; Li, S. Y.

doi:10.1163/156939309789476392

Cited by 5 publications

(4 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In order to analyze the linearity of the HSOM working as a mixer, the two figures of merit which are commonly used to characterize conventional amplifiers [8-10, 26, 27], and mixers [13,15,17,28], namely, the 1 dB compression point and the third order interception point (IP3), will be calculated. In addition, an in-depth study of the influence of the harmonic content and the operating regime of the circuit on the linearity of the mixing operation will be performed.…”

Section: Analysis Of the Linearity Of The Hsommentioning

confidence: 99%

New Non-Linear Approach for the Evaluation of the Linearity of High Gain Harmonic Self Oscillating Mixers

Fernández

Hoeye²,

Vázquez³

et al. 2012

PIER

View full text Add to dashboard Cite

Abstract-In this work, the linearity of a high gain Harmonic Self Oscillating Mixer (HSOM) is analyzed. In order to obtain high conversion gain, the working point of the HSOM is established close to a Hopf bifurcation point. The traditional figures of merit used to characterize the linearity of conventional mixers cannot be directly applied to characterize the behavior of autonomous circuits, because of the influence of the input RF signal power on the autonomous signal parameters. The 1 dB compression point and the third order distortion will be analyzed as a function of the harmonic content and maximum gain of the circuit. From the collected data, the optimum harmonic content and the maximum conversion gain of the HSOM can be selected, for a particular application, in order to minimize the output IF signal distortion.

show abstract

Section: Analysis Of the Linearity Of The Hsommentioning

confidence: 99%

New Non-Linear Approach for the Evaluation of the Linearity of High Gain Harmonic Self Oscillating Mixers

Fernández

Hoeye²,

Vázquez³

et al. 2012

PIER

View full text Add to dashboard Cite

show abstract

“…A lot of effort has now been spent on the development of wideband radio frequency (RF) CMOS mixers. Active wideband double balanced Gilbert mixer has been the mainstay of integrated multi-standard receiver systems due to their superior conversion gain and good port-to-port isolations performance [20][21][22]. However, the supply voltage available to Gilbert mixer decreases with CMOS technology scaling, and therefore the issue of voltage headroom and high flicker noise remains in low supply voltage design.…”

Section: Introductionmentioning

confidence: 99%

A Wideband Cmos Current-Mode Down-Conversion Mixer for Multi-Standard Receivers

Wan¹,

Wang²

2012

PIER

View full text Add to dashboard Cite

Abstract-This paper presents a low voltage wideband downconversion mixer using current-mode approach for multi-standard receivers. The proposed mixer uses a current mirror amplifier with an embedded passive switching core to achieve mixing function, which can combine the advantages of active and passive mixers simultaneously. The mixer is implemented using a 0.18 µm CMOS technology and covers frequency band from 0.5 GHz to 4.0 GHz. A comparison with conventional CMOS down-conversion mixer shows that this currentmode mixer has advantages of large conversion gain, low noise figure and high linearity. Over the entire bandwidth, the mixer features a measured power conversion gain of 8.9 ∼ 9.6 dB, a double-sideband (DSB) noise figure of 6.9 ∼ 9.3 dB and an input third-order intercept point (IIP3) of 2.0 ∼ 5.8 dBm, while consuming 8 mA from a 1.2 V supply voltage. The mixer occupies the active area of 0.43 × 0.46 mm 2 including testing pads.

show abstract

“…The spurious rejection and IMD3 mostly depend on the performance of the mixer. In order to improve isolation and suppress these spurious signals, the balanced drain mixer [4], balanced MMIC Schottky barrier diode mixer [3,5,6], resistive source-degenerated mixer [7], antiparallel diode pair harmonic mixer [1] and balanced resistive PHEMT mixer [8] have been proposed for the designs of the mixers. Schottky barrier diode is famous for its low noise and high cut-off frequency, and thus the diode pair or quad is often adopted for compact balanced MMIC mixer design utilizing broadband baluns such as Lange couplers, spiral baluns [3,5], Marchand baluns and some others [9].…”

Section: Introductionmentioning

confidence: 99%

Design of a Microstrip Balanced Mixer for Satellite Communication

Guo¹,

Xu²,

Qian³

et al. 2011

PIER

View full text Add to dashboard Cite

Abstract-The design and measured results of a compact, low cost, low conversion loss microstrip single balanced Schottky diodes mixer is proposed. This mixer is designed for Ka-band satellite transponder simulator to convert the 30 GHz radio-frequency (RF) signal down to the 20 GHz intermediate-frequency (IF) signal with 9.8 GHz local oscillator (LO) frequency. This design takes full advantage of the frequency relationship of the RF, IF and LO, which is 3 : 2 : 1. A microstrip rat-race ring is designed at the LO frequency, which also functions as a 180-degree hybrid coupler at the RF frequency by its intrinsic multi-band characteristic. The amplitude and phase balance at both LO and RF frequency are analyzed, which guarantee the stateof-art performance of this single balanced mixer. The multi-function open/short stubs and a lowpass filter (LPF) with bonding wires across the rat-race ring are optimized to realize this low conversion loss mixer. The measured results show that the conversion loss is less than 9 dB at the IF frequency from 20.0 to 21.6 GHz, and the power of the second harmonic of LO is −45 dBm with +6.5 dBm LO drive power. The 3rd order inter-modulation products (IMD3) could be lower than −50 dBc with LO power higher than +7.8 dBm at the input RF power of −15 dBm.

show abstract

A Broadband High Linearity and Isolation Down-Conversion Mixer for Wimax Applications

Cited by 5 publications

References 11 publications

New Non-Linear Approach for the Evaluation of the Linearity of High Gain Harmonic Self Oscillating Mixers

New Non-Linear Approach for the Evaluation of the Linearity of High Gain Harmonic Self Oscillating Mixers

A Wideband Cmos Current-Mode Down-Conversion Mixer for Multi-Standard Receivers

Design of a Microstrip Balanced Mixer for Satellite Communication

Contact Info

Product

Resources

About