Wide-band SSB subharmonically pumped mixer MMIC

Abstract

To achieve low conversion-loss and high imagerejection performance in the wide band for up and down conversion, an SSB subharmonically pumped mixer using an inphase RF divider/combiner is proposed. The SSB mixer monolithic microwave integrated circuit (MMIC) is integrated in a small area of 1.8 2 1.3 mm 2 and shows good performance at 21.6 to 30.8 GHz.Index Terms-Image-rejection mixer, monolithic microwave integrated circuit (MMIC), quasi-lumped stub, subharmonically pumped mixer, wide-band mixer.

A Miniature 38-48 GHz MMIC Sub-Harmonic Transmitter With Post-Distortion Linearization

“…The antiparallel pair diode is chosen as the mixing core and each diode is two-finger 30-tm. The quasi-lumped matching topology is used to reduce the size of quarter-wavelength open/short stubs for miniature circuit implementations [8], as shown in Fig. 2.…”

A Low-Power Ku-Band GaAs Monolithic Frequency Quadrupler

“…Unfortunately, the "open" frequency of the shortened stub is not a harmonic of the "short" frequency; thus, it is not suitable for doublers. To overcome this problem, a quasi-lumped method with asymmetric shunt capacitors has been proposed [15]. The with a lumped inductor, as shown in Fig.…”

Fundamental Limitations on the Output Power of Balanced Mixers and Even Harmonic Mixers in Modulator Operation

“…Based on the above features, the authors have proposed new circuit topologies of even harmonic mixers and their applications: even harmonic up-converters with extremely low virtual LO leakage [7], [8], even harmonic modulators with extremely low carrier leakage [9], and even harmonic direct-conversion receivers with low second-order distortion [10]. Since the publication of the authors' initial works, several studies on even harmonic mixers have been reported [11]- [15]. Even harmonic mixers have issues related to their lower output power and higher conversion-loss dependence on the LO power.…”