In　microwave　wireless　power　receivers,　impedance　matching　networks　can　maximize　power　transmission　from　RF　to　dc.　However,　they　require　circuit　components　and　physical　space　to　implement.　To　circumvent　the　problem,　we　present　two　compact　patch　rectennas　that　do　not　require　matching　networks.　They　comprise　a　patch　antenna　and　rectifying　Schottky　diodes　which　are　mounted　on　the　ground　plane　and　connected　to　the　patch　antenna　through　metallic　vias.　The　positions　of　the　vias　are　chosen　in　such　a　way　that　the　input　impedance　of　the　antenna　and　that　of　the　rectifying　units　are　conjugately　matched.　The　two　rectenna　types　are　all　fabricated　and　tested:　one　with　one　rectifying　unit　and　the　other　with　double　rectifying　units,　respectively.　Measurements　show　that　the　rectenna　with　the　single　rectifying　unit　has　the　peak　RF-dc　conversion　efficiency　of　77%　at　2.45　GHz　and　the　dynamic　power　range　(＞60%)　is　10　dB.　The　rectenna　with　the　double　rectifying　units　has　the　peak　conversion　efficiency　of　74.14%　at　2.45　GHz　and　the　dynamic　power　range　(＞60%)　is　10　dB.　Both　rectennas　are　good　candidates　for　integrated　microwave　wireless　power　receivers　due　to　the　removal　of　the　impedance　matching　networks　and　the　suppression　of　harmonic　components.　©　1963-2012　IEEE.