A low-power high performance 4GHz SiGe HBT VCO

Khalil, A.I.; Katzin, P.

doi:10.1109/mwsym.2004.1338860

Cited by 3 publications

(1 citation statement)

References 8 publications

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“…The spiral inductors provided by the RFIC technologies are employed as mainly RF chokes in typical PA circuits [1][2][3][4]. Traditionally, quarter wave transmission lines are used as off-chip RF choke inductors; however, the size is a concern for these inductors to be placed on-chip [5][6]. In this paper, capacitively loaded CPW based RF chokes are presented as on-chip components, and the performance of these RF chokes are investigated in terms of impedance level, quality factor and chip area occupied.…”

Section: Introductionmentioning

confidence: 99%

A coplanar waveguide on‐chip RF choke for WLAN RF circuits

Kavlak

Gürbüz

Tekin

2007

Micro & Optical Tech Letters

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-A novel on-chip RF choke at 5 GHz is designed and measured for a class A operating Wireless LAN RF power amplifier (PA). The coplanar waveguide (CPW) based on-chip RF choke is implemented as an alternative component to inductors provided by the 0.35 µm SiGe BiCMOS technology. The CPW RF choke is designed at 5 GHz, and has a length of 1600 um and loaded with a capacitance of 0.95 pF. The measured impedance of the RF choke at 5 GHz is around 104 ohms.

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Section: Introductionmentioning

confidence: 99%

A coplanar waveguide on‐chip RF choke for WLAN RF circuits

Kavlak

Gürbüz

Tekin

2007

Micro & Optical Tech Letters

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MMIC Cavity Oscillators

Khalil¹,

Oran²,

Hay³

et al. 2011

2011 IEEE Compound Semiconductor Integrated Circuit Symposium (CSICS)

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This paper describes the design and implementation of a new class of fully integrated oscillators in standard MMIC technology. Each oscillator comprises of a rectangular waveguide cavity resonator, a loop amplifier, and a phase shifter. Several cavities are constructed on standards GaAs substrate with quality factors of 120-170 between 40-50 GHz. The phase noise of a 52 GHz MMIC oscillator is -122 dBc/Hz at 1MHz offset.

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